Fukushima Prefecture, Japan (original) (raw)

ⓘ Acanthite

Formula: Ag2S

Localities:

Takatama mine, Koriyama City, Fukushima Prefecture, Japan
Karuizawa mine, Yanaizu Town, Kawanuma District, Fukushima Prefecture, Japan
Handa mine, Koori, Date City, Fukushima Prefecture, Japan

ⓘ Actinolite

Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2

ⓘ Aegirine

Formula: NaFe3+Si2O6

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62

ⓘ Aguilarite

Formula: Ag4SeS

ⓘ Alabandite

Formula: MnS

ⓘ Albite

Formula: Na(AlSi3O8)

Localities: Reported from at least 8 localities in this region.

ⓘ Albite var. Oligoclase

Formula: (Na,Ca)[Al(Si,Al)Si2O8]

ⓘ Allanite-(Ce)

Formula: (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)

Localities: Reported from at least 8 localities in this region.

Habit: Prismatic, a few mm's in length.

Colour: Brown

Description: Rare in K feldspar of the intermediate zone.

ⓘ 'Allanite Group'

Formula: (A12+REE3+)(M13+M23+M32+)O[Si2O7][SiO4](OH)

ⓘ Allanite-(Y)

Formula: (CaY)(AlAlFe2+)O[Si2O7][SiO4](OH)

References:

SUENO, Shigeho, MATSUURA, Shigeru, BUNNO, Michiaki, KUROSAWA, Masanori (2002) Occurrence and crystal chemical features of protoferro-anthophyllite and protomangano-ferro-anthophyllite from Cheyenne Canyon and Cheyenne Mountain, U.S.A. and Hirukawa-mura, Suisho-yama, and Yokone-yama, Japan. Journal of Mineralogical and Petrological Sciences, 97 (4) 127-136 doi:10.2465/jmps.97.127

ⓘ Alleghanyite

Formula: Mn2+5(SiO4)2(OH)2

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ Almandine

Formula: Fe2+3Al2(SiO4)3

Localities: Reported from at least 7 localities in this region.

ⓘ Alunogen

Formula: Al2(SO4)3 · 17H2O

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ 'Amphibole Supergroup'

Formula: A B2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2

ⓘ Andalusite

Formula: Al2(SiO4)O

Localities:

Teshirogi, Koriyama City, Fukushima Prefecture, Japan
Kosugama, Tamagawa, Ishikawa District, Fukushima Prefecture, Japan
Uzumine mine (Udumine mine; Uzumine pegmatite), Mt Uzumine (Utsumine), Sukagawa City, Fukushima Prefecture, Japan
Kita-Sugama, Tamagawa, Ishikawa District, Fukushima Prefecture, Japan
Mt Kamakuradake, Takanuki, Fukushima Prefecture, Japan

ⓘ Andradite

Formula: Ca3Fe3+2(SiO4)3

Localities:

Takanokura mine, Soma District, Fukushima Prefecture, Japan
Yaguki mine (Yakuki mine), Iwaki City, Fukushima Prefecture, Japan
Asahi deposit, Yaguki mine (Yakuki mine), Iwaki City, Fukushima Prefecture, Japan
Unnamed quarry, Tadano, Koriyama City, Fukushima Prefecture, Japan

ⓘ 'Andradite-Grossular Series'

ⓘ Anhydrite

Formula: CaSO4

ⓘ Annite

Formula: KFe2+3(AlSi3O10)(OH)2

Localities:

Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan
Chinokubo, Furudono, Ishikawa District, Fukushima Prefecture, Japan
Kaiya, Tabiro, Fukushima Prefecture, Japan

ⓘ Anorthite

Formula: Ca(Al2Si2O8)

ⓘ Aragonite

Formula: CaCO3

References:

Atsushi ISHIHARA, Hiroaki OHFUJI, Mineralogical study on zeolites in gastropod fossils in Miocene sediments in Minamisoma, Fukushima, Japan, Journal of Mineralogical and Petrological Sciences, 2023, Volume 118, Issue 1, Released on J-STAGE November 21, 2023, Advance online publication October 13, 2023, Online ISSN 1349-3825, Print ISSN 1345-6296, https://doi.org/10.2465/jmps.230327, https://www.jstage.jst.go.jp/article/jmps/118/1/118_230327/_article/-char/en

ⓘ Arseniopleite

Formula: NaCaMnMn2(AsO4)3

References:

Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62

ⓘ Autunite

Formula: Ca(UO2)2(PO4)2 · 10-12H2O

Localities:

Ishikawa District, Fukushima Prefecture, Japan
Uzumine mine (Udumine mine; Uzumine pegmatite), Mt Uzumine (Utsumine), Sukagawa City, Fukushima Prefecture, Japan
Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan
Izutsuyama pegmatite, Nekonaki, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan

ⓘ Azurite

Formula: Cu3(CO3)2(OH)2

ⓘ Babingtonite

Formula: Ca2(Fe,Mn)FeSi5O14(OH)

ⓘ Baryte

Formula: BaSO4

ⓘ Bementite

Formula: Mn7Si6O15(OH)8

ⓘ Beryl

Formula: Be3Al2(Si6O18)

Localities:

Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan
Mt Uzumine (Utsumine), Fukushima Prefecture, Japan
Ishikawa District, Fukushima Prefecture, Japan
Tomaki, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan
Uzumine mine (Udumine mine; Uzumine pegmatite), Mt Uzumine (Utsumine), Sukagawa City, Fukushima Prefecture, Japan

ⓘ Beyerite

Formula: Ca(BiO)2(CO3)2

ⓘ 'Biotite'

Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2

Localities: Reported from at least 14 localities in this region.

ⓘ Bismuth

Formula: Bi

ⓘ Bismuthinite

Formula: Bi2S3

ⓘ Bismutoferrite

Formula: Fe3+2Bi(SiO4)2(OH)

ⓘ Bornite

Formula: Cu5FeS4

ⓘ Brandtite

Formula: Ca2Mn2+(AsO4)2 · 2H2O

References:

Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62

ⓘ Braunite

Formula: Mn2+Mn3+6(SiO4)O8

ⓘ Britholite-(Y) (TL)

Formula: (Y,Ca)5(SiO4)3OH

Localities:

Abukuma range (Abukuma massif), Fukushima Prefecture, Japan
Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan
Fusamata, Kawamata, Date District, Fukushima Prefecture, Japan

ⓘ Brochantite

Formula: Cu4(SO4)(OH)6

ⓘ Brockite

Formula: (Ca,Th,Ce)PO4 · H2O

Localities:

Ishikawa District, Fukushima Prefecture, Japan
Atagoyama, Koriyama City, Fukushima Prefecture, Japan
Shionodaira (Shionohira), Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan
Ishizuka, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan

ⓘ Calcite

Formula: CaCO3

Localities: Reported from at least 12 localities in this region.

ⓘ Calcite var. Glendonite

Formula: CaCO3

ⓘ 'Calcium Amphibole Subgroup'

Formula: AnCa2(Z2+5-mZ3+m)(Si8-(n+m)Al(n+m))(OH,F,Cl)2

References:

Atsushi ISHIHARA, Hiroaki OHFUJI, Mineralogical study on zeolites in gastropod fossils in Miocene sediments in Minamisoma, Fukushima, Japan, Journal of Mineralogical and Petrological Sciences, 2023, Volume 118, Issue 1, Released on J-STAGE November 21, 2023, Advance online publication October 13, 2023, Online ISSN 1349-3825, Print ISSN 1345-6296, https://doi.org/10.2465/jmps.230327, https://www.jstage.jst.go.jp/article/jmps/118/1/118_230327/_article/-char/en

ⓘ 'Calcium Amphibole Subgroup var. Hornblende'

References:

Atsushi ISHIHARA, Hiroaki OHFUJI, Mineralogical study on zeolites in gastropod fossils in Miocene sediments in Minamisoma, Fukushima, Japan, Journal of Mineralogical and Petrological Sciences, 2023, Volume 118, Issue 1, Released on J-STAGE November 21, 2023, Advance online publication October 13, 2023, Online ISSN 1349-3825, Print ISSN 1345-6296, https://doi.org/10.2465/jmps.230327, https://www.jstage.jst.go.jp/article/jmps/118/1/118_230327/_article/-char/en

ⓘ Caysichite-(Y)

Formula: (Ca,Yb,Er)4Y4(Si8O20)(CO3)6(OH) · 7H2O

ⓘ Celestine

Formula: SrSO4

ⓘ Cerussite

Formula: PbCO3

ⓘ 'Chabazite'

ⓘ Chalcocite

Formula: Cu2S

ⓘ Chalcophanite

Formula: ZnMn4+3O7 · 3H2O

ⓘ Chalcopyrite

Formula: CuFeS2

Localities: Reported from at least 16 localities in this region.

ⓘ Chamosite

Formula: (Fe2+)5Al(Si,Al)4O10(OH,O)8

ⓘ Chlorargyrite

Formula: AgCl

ⓘ 'Chlorite Group'

ⓘ Chromite

Formula: Fe2+Cr3+2O4

ⓘ Chrysoberyl

Formula: BeAl2O4

ⓘ Clinochlore

Formula: Mg5Al(AlSi3O10)(OH)8

Colour: blackish green

Description: often partially replacing octahedral pyrochlore crystals and schorl

References:

Matsubara, S., Miyawaki, R., Yokoyama, K., Momma, K., Shigeoka, M., and Hashimoto, E. (2013) Pyrochlore and microlite in a pegmatite at Atagoyama, Koriyama City, Fukushima Prefecture, Japan. Bulletin of the National Museum of Nature and Science, Ser. C, 39, 1–6.

ⓘ Clinofergusonite-(Y)

Formula: YNbO4

ⓘ Clinoptilolite-Ca (TL)

Formula: Ca3(Si30Al6)O72 · 20H2O

Type Locality:

ⓘ 'Clinoptilolite Subgroup'

Formula: M3-6(Si30Al6)O72 · 20H2O

ⓘ 'Clinopyroxene Subgroup'

References:

Shimizu, M., Kato, A., & Sakurai, K. I. (1993). Heyrovskýite, lillianite solid solution and galena from the Yakuki mine, Fukushima Prefecture, Japan. Shigen-Chishitsu, 43(240), 283-290.

ⓘ Clinozoisite

Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)

Localities:

Tokura, Fukushima Prefecture, Japan
Yaguki mine (Yakuki mine), Iwaki City, Fukushima Prefecture, Japan
Datenagai mine (Date Nagai mine), Fukushima Prefecture, Japan
Nagakuki dump, Higashishirakawa District, Fukushima Prefecture, Japan

ⓘ Cobaltite

Formula: CoAsS

ⓘ Columbite-(Fe)

Formula: Fe2+Nb2O6

Localities:

Uzumine mine (Udumine mine; Uzumine pegmatite), Mt Uzumine (Utsumine), Sukagawa City, Fukushima Prefecture, Japan
Mujinamori, Sukagawa City, Fukushima Prefecture, Japan
Shiozawa, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan
Kuroe mine, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan
Atagoyama, Koriyama City, Fukushima Prefecture, Japan

ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series'

Localities:

Idogami, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan
Ishikawa District, Fukushima Prefecture, Japan
Shionodaira (Shionohira), Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan
Izutsuyama pegmatite, Nekonaki, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan
Kozoyama pegmatite, Nekonaki, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan

ⓘ Conichalcite

Formula: CaCu(AsO4)(OH)

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ Copper

Formula: Cu

ⓘ Cordierite

Formula: (Mg,Fe)2Al3(AlSi5O18)

ⓘ Corundum

Formula: Al2O3

Localities:

Teshirogi, Koriyama City, Fukushima Prefecture, Japan
Uzumine mine (Udumine mine; Uzumine pegmatite), Mt Uzumine (Utsumine), Sukagawa City, Fukushima Prefecture, Japan
Kita-Sugama, Tamagawa, Ishikawa District, Fukushima Prefecture, Japan
Ishikawa District, Fukushima Prefecture, Japan

ⓘ Corundum var. Sapphire

Formula: Al2O3

ⓘ Cosalite

Formula: Pb2Bi2S5

ⓘ Covellite

Formula: CuS

ⓘ Crednerite

Formula: CuMnO2

References:

Matsubara, S., Kato, A., Hashimoto, E., Sekiuchi, K. (1994) Crednerite from the Gozaisho mine, Iwaki City, Fukushima Prefecture, Japan. Mineralogical Journal 17, 21-27

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62

ⓘ Cryptomelane

Formula: K(Mn4+7Mn3+)O16

Localities:

Gozaisho Mine, Iwaki City, Fukushima Prefecture, Japan
Yamato mine, Yamato-machi, Yama District, Fukushima Prefecture, Japan
Wasedani mine, Yamato-machi, Yama District, Fukushima Prefecture, Japan

ⓘ Cubanite

Formula: CuFe2S3

ⓘ Cuprite

Formula: Cu2O

ⓘ Datolite

Formula: CaB(SiO4)(OH)

ⓘ Digenite

Formula: Cu9S5

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ Diopside

Formula: CaMgSi2O6

ⓘ Djurleite

Formula: Cu31S16

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ Dolomite

Formula: CaMg(CO3)2

ⓘ Dravite

Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)

Description: Occurs in the wall zone.

ⓘ Dumortierite

Formula: Al(Al2O)(Al2O)2(SiO4)3(BO3)

ⓘ 'Ellestadite'

ⓘ Elyite

Formula: Pb4Cu(SO4)O2(OH)4 · H2O

ⓘ Epidote

Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)

Localities:

Yamagoya, Fukushima Prefecture, Japan
Yaguki mine (Yakuki mine), Iwaki City, Fukushima Prefecture, Japan
Bandaiatami, Koriyama City, Fukushima Prefecture, Japan
Nakatsugawa, Nakada-cho, Fukushima Prefecture, Japan

ⓘ Epsomite

Formula: MgSO4 · 7H2O

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Ettringite

Formula: Ca6Al2(SO4)3(OH)12 · 26H2O

ⓘ Euxenite-(Y)

Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6

Localities:

Izutsuyama pegmatite, Nekonaki, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan
Mt Uzumine (Utsumine), Fukushima Prefecture, Japan
Nekonaki, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan
Ishikawa District, Fukushima Prefecture, Japan
Uzumine mine (Udumine mine; Uzumine pegmatite), Mt Uzumine (Utsumine), Sukagawa City, Fukushima Prefecture, Japan

ⓘ Fayalite

Formula: Fe2+2SiO4

References:

SUENO, Shigeho, MATSUURA, Shigeru, BUNNO, Michiaki, KUROSAWA, Masanori (2002) Occurrence and crystal chemical features of protoferro-anthophyllite and protomangano-ferro-anthophyllite from Cheyenne Canyon and Cheyenne Mountain, U.S.A. and Hirukawa-mura, Suisho-yama, and Yokone-yama, Japan. Journal of Mineralogical and Petrological Sciences, 97 (4) 127-136 doi:10.2465/jmps.97.127

ⓘ 'Fayalite-Tephroite Series'

ⓘ 'Fayalite-Tephroite Series var. Knebelite'

Formula: from (Fe1.5Mn0.5)2SiO4 to (Mn1.5Fe0.5)2SiO4

ⓘ 'Feldspar Group'

Localities: Reported from at least 7 localities in this region.

ⓘ 'Feldspar Group var. Perthite'

Localities:

Mt Uzumine (Utsumine), Fukushima Prefecture, Japan
Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan
Uzumine mine (Udumine mine; Uzumine pegmatite), Mt Uzumine (Utsumine), Sukagawa City, Fukushima Prefecture, Japan

ⓘ Felsőbányaite

Formula: Al4(SO4)(OH)10 · 4H2O

ⓘ 'Fergusonite'

ⓘ Fergusonite-(Y)

Formula: YNbO4

Localities: Reported from at least 6 localities in this region.

ⓘ Ferri-ghoseite

Formula: ◻[Mn2+Na][Mg4Fe3+]Si8O22(OH)2

ⓘ Fluorite

Formula: CaF2

Localities:

Yonaibata mine (Yonaihata mine; Yonaihata-Kano mine), Yama District, Fukushima Prefecture, Japan
Hotaru mine, Tateiwa, Minamiaizu District, Fukushima Prefecture, Japan
Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan

ⓘ Fluorite var. Yttrofluorite

Formula: (Ca1-xYx)F2+x where 0.05 < x < 0.3

ⓘ 'Fluornatroroméite'

Formula: (Na,Ca)2Sb2(O,OH)6F

References:

Matsubara, S., Kato, A, Shimizu, M. S., Sekiuchi, K. & Suzuki, K. (1996): Romeite from Gozaisho mine, Iwaki, Japan. Mineralogical Journal. 18 (4): 155-160

Atencio, D., Andrade, M. B., Christy, A. G., Giere, R., Kartashov, P. M. (2010) The pyrochlore supergroup of minerals: nomenclature. The Canadian Mineralogist, 48 (3) 673-698 doi:10.3749/canmin.48.3.673

ⓘ Foitite

Formula: ◻(Fe2+2Al)Al6(Si6O18)(BO3)3(OH)3(OH)

ⓘ Forsterite

Formula: Mg2SiO4

ⓘ 'Gadolinite'

ⓘ Gahnite

Formula: ZnAl2O4

ⓘ Galena

Formula: PbS

Localities: Reported from at least 12 localities in this region.

ⓘ Ganophyllite

Formula: (K,Na,Ca)2Mn8(Si,Al)12(O,OH)32 · 8H2O

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ 'Garnet Group'

Formula: X3Z2(SiO4)3

Localities: Reported from at least 7 localities in this region.

ⓘ Gehlenite

Formula: Ca2Al[AlSiO7]

ⓘ Geigerite

Formula: Mn2+5(AsO4)2(HAsO4)2 · 10H2O

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ Geikielite

Formula: MgTiO3

ⓘ Gersdorffite

Formula: NiAsS

ⓘ Glauberite

Formula: Na2Ca(SO4)2

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Goethite

Formula: α-Fe3+O(OH)

Localities: Reported from at least 7 localities in this region.

ⓘ Gold

Formula: Au

ⓘ Gold var. Electrum

Formula: (Au,Ag)

ⓘ Grayite

Formula: (Th,Pb,Ca)(PO4) · H2O

ⓘ Grossular

Formula: Ca3Al2(SiO4)3

Localities: Reported from at least 8 localities in this region.

ⓘ 'Grossular-Hibschite Series'

ⓘ 'Groundwater'

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Grunerite

Formula: ◻{Fe2+2}{Fe2+5}(Si8O22)(OH)2

ⓘ 'Gummite'

ⓘ 'Gummite var. Yttrogummite'

ⓘ Gustavite

Formula: AgPbBi3S6

ⓘ Gypsum

Formula: CaSO4 · 2H2O

Localities: Reported from at least 6 localities in this region.

ⓘ Hausmannite

Formula: Mn2+Mn3+2O4

ⓘ Hedenbergite

Formula: CaFe2+Si2O6

ⓘ Helvine

Formula: Be3Mn2+4(SiO4)3S

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ Hematite

Formula: Fe2O3

Localities:

Gozaisho Mine, Iwaki City, Fukushima Prefecture, Japan
Nakano mine, Fukushima Prefecture, Japan
Takahata Mine, Koriyama City, Fukushima Prefecture, Japan
Yaguki mine (Yakuki mine), Iwaki City, Fukushima Prefecture, Japan

ⓘ Hessite

Formula: Ag2Te

ⓘ 'Heulandite Subgroup'

Formula: (Na/Ca/K)5-6[Al8-9 Si27-28 O72] · nH2O

References:

Atsushi ISHIHARA, Hiroaki OHFUJI, Mineralogical study on zeolites in gastropod fossils in Miocene sediments in Minamisoma, Fukushima, Japan, Journal of Mineralogical and Petrological Sciences, 2023, Volume 118, Issue 1, Released on J-STAGE November 21, 2023, Advance online publication October 13, 2023, Online ISSN 1349-3825, Print ISSN 1345-6296, https://doi.org/10.2465/jmps.230327, https://www.jstage.jst.go.jp/article/jmps/118/1/118_230327/_article/-char/en

ⓘ Hexahydrite

Formula: MgSO4 · 6H2O

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Heyrovskýite

Formula: Pb6Bi2S9

ⓘ Hingganite-(Y)

Formula: (Y,REE,Ca)2(◻,Fe2+)Be2[SiO4]2(OH)2

ⓘ 'Hornblende Root Name Group'

Formula: ◻Ca2(Z2+4Z3+)(AlSi7O22)(OH,F,Cl)2

Localities:

Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan
Jitsusawa, Fukushima Prefecture, Japan
Haneyama mine (Hayama mine), Kawamata, Date District, Fukushima Prefecture, Japan

ⓘ Hörnesite

Formula: Mg3(AsO4)2 · 8H2O

ⓘ Hydrobiotite

Formula: K(Mg,Fe2+)6((Si,Al)8O20)(OH)4 · nH2O

ⓘ Hydroglauberite

Formula: Na10Ca3(SO4)8 · 6H2O

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Hydroxycalciomicrolite

Formula: Ca1.5Ta2O6(OH)

Habit: octahedral crystals or anhedral grains up to 10mm across

Colour: dark brown to amber yellow

References:

Matsubara, S., Miyawaki, R., Yokoyama, K., Momma, K., Shigeoka, M., and Hashimoto, E. (2013) Pyrochlore and microlite in a pegmatite at Atagoyama, Koriyama City, Fukushima Prefecture, Japan. Bulletin of the National Museum of Nature and Science, Ser. C, 39, 1–6.

ⓘ Hydroxylapatite

Formula: Ca5(PO4)3(OH)

ⓘ 'Hydroxylapatite-Hydroxylellestadite Series'

References:

Banno, Y., Miyawaki, R., Momma, K., Bunno, M. (2016) A CO3-bearing member of the hydroxylapatite–hydroxylellestadite series from Tadano, Fukushima Prefecture, Japan: CO3-SO4 substitution in the apatite–ellestadite series. Mineralogical Magazine, 80 (2) 363-370 doi:10.1180/minmag.2016.080.005

ⓘ Hydroxylherderite

Formula: CaBe(PO4)(OH)

ⓘ Iimoriite-(Y) (TL)

Formula: Y2[SiO4][CO3]

ⓘ Ilmenite

Formula: Fe2+TiO3

Localities:

Ishikawa District, Fukushima Prefecture, Japan
Uzumine mine (Udumine mine; Uzumine pegmatite), Mt Uzumine (Utsumine), Sukagawa City, Fukushima Prefecture, Japan
Haneyama mine (Hayama mine), Kawamata, Date District, Fukushima Prefecture, Japan

ⓘ Ishikawaite (TL)

Formula: U4+Fe2+Nb2O8

Localities:

Ishikawa District, Fukushima Prefecture, Japan
Shiozawa, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan
Wagu, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan

ⓘ Iwashiroite-(Y) (TL)

Formula: Y(Ta,Nb)O4

Type Locality:

References:

Hori, Hidemichi, Kobayashi, Toshinori, Miyawaki, Ritsuro, Matsubara, Satoshi, Yokoyama, Kazumi, Shimizu, Masaaki (2006) Iwashiroite-(Y), YTaO4, a new mineral from Suishoyama, Kawamata Town, Fukushima Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 101 (4) 170-177 doi:10.2465/jmps.101.170

ⓘ Jacobsite

Formula: Mn2+Fe3+2O4

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ 'Jacobsite-Q' (FRL)

Formula: Mn2+(Fe3+,Mn3+)2O4

Type Locality:

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62

ⓘ Jarosite

Formula: KFe3+3(SO4)2(OH)6

ⓘ Joséite-A

Formula: Bi4TeS2

References:

Shimizu, M., Kato, A., & Sakurai, K. I. (1993). Heyrovskýite, lillianite solid solution and galena from the Yakuki mine, Fukushima Prefecture, Japan. Shigen-Chishitsu, 43(240), 283-290.

ⓘ Jurbanite

Formula: Al(SO4)(OH) · 5H2O

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Kaolinite

Formula: Al2(Si2O5)(OH)4

ⓘ Katoite

Formula: Ca3Al2[◻(OH)4]3

References:

Banno, Yasuyuki, Momma, Koichi, Miyawaki, Ritsuro, Bunno, Michiaki (2023) New data on S-bearing katoite from Tadano, Fukushima Prefecture, Japan: an implication of the presence of both (SO3)2- and (SO4)2- in the garnet structure. Journal of Mineralogical and Petrological Sciences, 118 (1) 220724

ⓘ Katoite var. Sulfur-bearing Katoite

References:

Banno, Yasuyuki, Momma, Koichi, Miyawaki, Ritsuro, Bunno, Michiaki (2023) New data on S-bearing katoite from Tadano, Fukushima Prefecture, Japan: an implication of the presence of both (SO3)2- and (SO4)2- in the garnet structure. Journal of Mineralogical and Petrological Sciences, 118 (1) 220724

ⓘ 'K Feldspar'

Localities:

Ishikawa District, Fukushima Prefecture, Japan
Atagoyama, Koriyama City, Fukushima Prefecture, Japan
Takatama mine, Koriyama City, Fukushima Prefecture, Japan
Jisabara, Minamisōma City, Fukushima Prefecture, Japan

ⓘ 'K Feldspar var. Adularia'

Formula: KAlSi3O8

ⓘ Kogarkoite

Formula: Na3(SO4)F

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Laihunite

Formula: (Fe2+0.5◻0.5)Fe3+[SiO4]

References:

SUENO, Shigeho, MATSUURA, Shigeru, BUNNO, Michiaki, KUROSAWA, Masanori (2002) Occurrence and crystal chemical features of protoferro-anthophyllite and protomangano-ferro-anthophyllite from Cheyenne Canyon and Cheyenne Mountain, U.S.A. and Hirukawa-mura, Suisho-yama, and Yokone-yama, Japan. Journal of Mineralogical and Petrological Sciences, 97 (4) 127-136 doi:10.2465/jmps.97.127

ⓘ Långbanite

Formula: Mn2+4Mn3+9Sb5+O16(SiO4)2

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ Langbeinite

Formula: K2Mg2(SO4)3

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Laumontite

Formula: CaAl2Si4O12 · 4H2O

ⓘ Lévyne-Ca

Formula: (Ca,Na2,K2)[Al2Si4O12] · 6H2O

ⓘ Lillianite

Formula: Pb3-2xAgxBi2+xS6

References:

Shimizu, M., Kato, A., & Sakurai, K. I. (1993). Heyrovskýite, lillianite solid solution and galena from the Yakuki mine, Fukushima Prefecture, Japan. Shigen-Chishitsu, 43(240), 283-290.

ⓘ 'Limonite'

ⓘ Löweite

Formula: Na12Mg7(SO4)13 · 15H2O

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Ludwigite

Formula: Mg2Fe3+(BO3)O2

ⓘ Mackinawite

Formula: FeS

ⓘ Magnesio-arfvedsonite

Formula: {Na}{Na2}{Mg4Fe3+}(Si8O22)(OH)2

ⓘ Magnesiochromite

Formula: MgCr2O4

ⓘ Magnesite

Formula: MgCO3

ⓘ Magnetite

Formula: Fe2+Fe3+2O4

Localities: Reported from at least 9 localities in this region.

ⓘ Malachite

Formula: Cu2(CO3)(OH)2

Localities:

Gozaisho Mine, Iwaki City, Fukushima Prefecture, Japan
Tateiwa mine, Tateiwa, Minamiaizu District, Fukushima Prefecture, Japan
Takanokura mine, Soma District, Fukushima Prefecture, Japan

ⓘ Manganberzeliite

Formula: (NaCa2)Mn2+2(AsO4)3

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62

ⓘ Manganosite

Formula: MnO

ⓘ Marcasite

Formula: FeS2

ⓘ 'Mica Group var. Lepidomelane'

Localities:

Izutsuyama pegmatite, Nekonaki, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan
Kozoyama pegmatite, Nekonaki, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan
Ikkoyashiki pegmatite, Nekonaki, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan

ⓘ Microcline

Formula: K(AlSi3O8)

Localities: Reported from at least 11 localities in this region.

ⓘ 'Microlite Group'

Formula: A2-mTa2X6-wZ-n

Habit: octahedral crystals or anhedral grains up to 10mm across

Colour: dark brown to amber yellow

References:

Matsubara, S., Miyawaki, R., Yokoyama, K., Momma, K., Shigeoka, M., and Hashimoto, E. (2013) Pyrochlore and microlite in a pegmatite at Atagoyama, Koriyama City, Fukushima Prefecture, Japan. Bulletin of the National Museum of Nature and Science, Ser. C, 39, 1–6.

ⓘ Miguelromeroite

Formula: MnMn2Mn2(AsO4)2(HAsO4)2 · 4H2O

Description: (Previously thought to be villyaellenite.)

ⓘ Mirabilite

Formula: Na2SO4 · 10H2O

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Miyawakiite-(Y) (TL)

Formula: ◻Y4Fe2(Si8O20)(CO3)4(H2O)3

Type Locality:

References:

Nishio-Hamane, D., Momma, K., Shimobayashi, N., Ohnishi, M. and Kobayashi, T. (2024) Miyawakiite-(Y), IMA 2024-003. CNMNC Newsletter 79, Mineralogical Magazine, 88

ⓘ Molybdenite

Formula: MoS2

Localities:

Gozaisho Mine, Iwaki City, Fukushima Prefecture, Japan
Fusamata, Kawamata, Date District, Fukushima Prefecture, Japan
Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan
Yaguki mine (Yakuki mine), Iwaki City, Fukushima Prefecture, Japan

ⓘ Monazite-(Ce)

Formula: Ce(PO4)

Localities: Reported from at least 7 localities in this region.

ⓘ 'Monazite Group'

Formula: REE(PO4)

Localities: Reported from at least 6 localities in this region.

ⓘ Montmorillonite

Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O

ⓘ Mordenite

Formula: (Na2,Ca,K2)4(Al8Si40)O96 · 28H2O

References:

Atsushi ISHIHARA, Hiroaki OHFUJI, Mineralogical study on zeolites in gastropod fossils in Miocene sediments in Minamisoma, Fukushima, Japan, Journal of Mineralogical and Petrological Sciences, 2023, Volume 118, Issue 1, Released on J-STAGE November 21, 2023, Advance online publication October 13, 2023, Online ISSN 1349-3825, Print ISSN 1345-6296, https://doi.org/10.2465/jmps.230327, https://www.jstage.jst.go.jp/article/jmps/118/1/118_230327/_article/-char/en

ⓘ Muscovite

Formula: KAl2(AlSi3O10)(OH)2

Localities: Reported from at least 17 localities in this region.

ⓘ Muscovite var. Sericite

Formula: KAl2(AlSi3O10)(OH)2

Localities:

Tsukigata mine, Koriyama City, Fukushima Prefecture, Japan
Tagokura mine, Fukushima Prefecture, Japan
Yaguki mine (Yakuki mine), Iwaki City, Fukushima Prefecture, Japan
Yokota Mine, Fukushima Prefecture, Japan

ⓘ Nambulite

Formula: LiMn2+4Si5O14(OH)

References:

Peacor, Donald R., Dunn, Pete J., White, John S., Jr.,, Grice, Joel D., Chi, Peter H. (1990) Lithiomarsturite, a new member of the pyroxenoid group, from North Carolina. American Mineralogist, 75 (3-4) 409-414 (occurrence as Gozaisho mine with ref. "(Ohashi, pers. comm.)")

MMatsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ Natronambulite

Formula: (Na,Li)(Mn,Ca)4Si5O14OH

ⓘ Naumannite

Formula: Ag2Se

ⓘ Neotocite

Formula: (Mn,Fe,Mg)SiO3 · H2O

ⓘ Népouite

Formula: Ni3Si2O5(OH)4

ⓘ Nickeline

Formula: NiAs

ⓘ Nontronite

Formula: Na0.3Fe2((Si,Al)4O10)(OH)2 · nH2O

References:

Atsushi ISHIHARA, Hiroaki OHFUJI, Mineralogical study on zeolites in gastropod fossils in Miocene sediments in Minamisoma, Fukushima, Japan, Journal of Mineralogical and Petrological Sciences, 2023, Volume 118, Issue 1, Released on J-STAGE November 21, 2023, Advance online publication October 13, 2023, Online ISSN 1349-3825, Print ISSN 1345-6296, https://doi.org/10.2465/jmps.230327, https://www.jstage.jst.go.jp/article/jmps/118/1/118_230327/_article/-char/en

ⓘ Nsutite

Formula: (Mn4+,Mn2+)(O,OH)2

ⓘ Opal

Formula: SiO2 · nH2O

ⓘ Orthoclase

Formula: K(AlSi3O8)

ⓘ Oxycalciopyrochlore

Formula: Ca2Nb2O6O

Habit: octahedral crystals or anhedral grains up to 10mm across

Colour: dark brown to amber yellow

References:

Matsubara, S., Miyawaki, R., Yokoyama, K., Momma, K., Shigeoka, M., and Hashimoto, E. (2013) Pyrochlore and microlite in a pegmatite at Atagoyama, Koriyama City, Fukushima Prefecture, Japan. Bulletin of the National Museum of Nature and Science, Ser. C, 39, 1–6.

✪ Parabrandtite

Formula: Ca2Mn2+(AsO4)2 · 2H2O

Colour: colourless

Fluorescence: no

Description: Feb. 2010: Single crystal XRD identification, G. Giester & F. Neuhold

ⓘ Pentlandite

Formula: (NixFey)Σ9S8

ⓘ Phlogopite

Formula: KMg3(AlSi3O10)(OH)2

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ Phlogopite var. Manganese-bearing Phlogopite

Formula: K(Mg,Mn)3(AlSi3O10)(OH)2

ⓘ 'Plagioclase'

Formula: (Na,Ca)[(Si,Al)AlSi2]O8

ⓘ Plumbonacrite

Formula: Pb5O(OH)2(CO3)3

ⓘ Polybasite

Formula: [Ag6Sb2S7][Ag9CuS4]

ⓘ Prehnite

Formula: Ca2Al2Si3O10(OH)2

ⓘ Proto-ferro-suenoite

Formula: ◻{Mn2+2}{Fe2+5}(Si8O22)(OH)2

References:

SUENO, Shigeho, MATSUURA, Shigeru, BUNNO, Michiaki, KUROSAWA, Masanori (2002) Occurrence and crystal chemical features of protoferro-anthophyllite and protomangano-ferro-anthophyllite from Cheyenne Canyon and Cheyenne Mountain, U.S.A. and Hirukawa-mura, Suisho-yama, and Yokone-yama, Japan. Journal of Mineralogical and Petrological Sciences, 97 (4) 127-136 doi:10.2465/jmps.97.127

ⓘ Pseudobrookite

Formula: Fe2TiO5

Description: As lamellae and veinlets in a grid pattern in niobian rutile.

ⓘ Pucherite

Formula: Bi(VO4)

ⓘ 'Pyralspite'

ⓘ Pyrargyrite

Formula: Ag3SbS3

ⓘ Pyrite

Formula: FeS2

Localities: Reported from at least 15 localities in this region.

ⓘ 'Pyrochlore Group'

Formula: A2Nb2(O,OH)6Z

Habit: octahedral crystals or anhedral grains up to 10mm across

Colour: dark brown to amber yellow

References:

Matsubara, S., Miyawaki, R., Yokoyama, K., Momma, K., Shigeoka, M., and Hashimoto, E. (2013) Pyrochlore and microlite in a pegmatite at Atagoyama, Koriyama City, Fukushima Prefecture, Japan. Bulletin of the National Museum of Nature and Science, Ser. C, 39, 1–6.

ⓘ Pyrolusite

Formula: Mn4+O2

ⓘ Pyromorphite

Formula: Pb5(PO4)3Cl

ⓘ Pyrophanite

Formula: Mn2+TiO3

ⓘ Pyrophyllite

Formula: Al2Si4O10(OH)2

ⓘ 'Pyroxene Group'

Formula: ADSi2O6

ⓘ Pyrrhotite

Formula: Fe1-xS

Localities:

Yaguki mine (Yakuki mine), Iwaki City, Fukushima Prefecture, Japan
Sawatari mine, Iwaki City, Fukushima Prefecture, Japan
Takanokura mine, Soma District, Fukushima Prefecture, Japan
Asahi deposit, Yaguki mine (Yakuki mine), Iwaki City, Fukushima Prefecture, Japan
Haneyama mine (Hayama mine), Kawamata, Date District, Fukushima Prefecture, Japan

ⓘ Quartz

Formula: SiO2

Localities: Reported from at least 35 localities in this region.

ⓘ Quartz var. Agate

ⓘ Quartz var. Amethyst

Formula: SiO2

Colour: lilac

Description: Sheafs of small stubby crystals (about 1-3 cm) in cavities of an altered volcanic rock (tuff). Pyramidal terminations of hexagonal symmetry with normal rhombohedral faces. Prism faces and occasional steep rhombohedral faces show split growth patterns. Crystals are translucent and of an even lilac color. Possibly grown as beta-quartz.

ⓘ Quartz var. Chalcedony

Formula: SiO2

ⓘ Quartz var. Rose Quartz

Formula: SiO2

Localities:

Uzumine mine (Udumine mine; Uzumine pegmatite), Mt Uzumine (Utsumine), Sukagawa City, Fukushima Prefecture, Japan
Shiraiwa mine, Adachi District, Fukushima Prefecture, Japan
Shiozawa, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan

ⓘ Quartz var. Smoky Quartz

Formula: SiO2

ⓘ Rhodochrosite

Formula: MnCO3

ⓘ Rhodonite

Formula: CaMn3Mn[Si5O15]

Localities:

Gozaisho Mine, Iwaki City, Fukushima Prefecture, Japan
Kuratani mine, Nishiaizu-machi, Yama District, Fukushima Prefecture, Japan
Shinsawatari mine, Iwaki City, Fukushima Prefecture, Japan

ⓘ 'Roméite Group'

Formula: A2(Sb5+)2O6Z

References:

Matsubara, S., Kato, A, Shimizu, M. S., Sekiuchi, K. & Suzuki, K. (1996): Romeite from Gozaisho mine, Iwaki, Japan. Mineralogical Journal. 18 (4): 155-160

Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62

ⓘ Rutile

Formula: TiO2

Localities:

Teshirogi, Koriyama City, Fukushima Prefecture, Japan
Atagoyama, Koriyama City, Fukushima Prefecture, Japan
Mt Uzumine (Utsumine), Fukushima Prefecture, Japan
Uzumine mine (Udumine mine; Uzumine pegmatite), Mt Uzumine (Utsumine), Sukagawa City, Fukushima Prefecture, Japan

ⓘ Rutile var. Ilmenorutile

Formula: (Ti,Nb)O2

ⓘ Rutile var. Niobium-bearing Rutile

Formula: (Ti,Nb)O2

ⓘ Samarskite-(Y)

Formula: YFe3+Nb2O8

Localities: Reported from at least 6 localities in this region.

ⓘ Sarkinite

Formula: Mn2+2(AsO4)(OH)

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bull. Natn. Sci. Mus., Tokyo, Ser. C, 27, 51-62

ⓘ Scawtite

Formula: Ca7(Si3O9)2CO3 · 2H2O

ⓘ Scheelite

Formula: Ca(WO4)

ⓘ Schorl

Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

Localities: Reported from at least 10 localities in this region.

ⓘ Scolecite

Formula: CaAl2Si3O10 · 3H2O

ⓘ Sekaninaite

Formula: (Fe,Mg)2Al3(AlSi5O18)

ⓘ Sepiolite

Formula: Mg4(Si6O15)(OH)2 · 6H2O

ⓘ 'Serpentine Subgroup'

Formula: D3[Si2O5](OH)4

ⓘ Siderite

Formula: FeCO3

ⓘ Sillénite

Formula: Bi12SiO20

ⓘ Sillimanite

Formula: Al2(SiO4)O

Localities:

Uzumine mine (Udumine mine; Uzumine pegmatite), Mt Uzumine (Utsumine), Sukagawa City, Fukushima Prefecture, Japan
Chinokubo, Furudono, Ishikawa District, Fukushima Prefecture, Japan
Mt Kamakuradake, Takanuki, Fukushima Prefecture, Japan

ⓘ Silver

Formula: Ag

Localities:

Karuizawa mine, Yanaizu Town, Kawanuma District, Fukushima Prefecture, Japan
Takatama mine, Koriyama City, Fukushima Prefecture, Japan
Handa mine, Koori, Date City, Fukushima Prefecture, Japan

ⓘ Sklodowskite

Formula: Mg(UO2)2(SiO3OH)2 · 6H2O

Description: minute flakes around crystal rims and along cracks of pyrochlore and microlite crystals.

References:

Matsubara, S., Miyawaki, R., Yokoyama, K., Momma, K., Shigeoka, M., and Hashimoto, E. (2013) Pyrochlore and microlite in a pegmatite at Atagoyama, Koriyama City, Fukushima Prefecture, Japan. Bulletin of the National Museum of Nature and Science, Ser. C, 39, 1–6.

ⓘ 'Smectite Group'

Formula: A0.3D2-3[T4O10]Z2 · nH2O

References:

Atsushi ISHIHARA, Hiroaki OHFUJI, Mineralogical study on zeolites in gastropod fossils in Miocene sediments in Minamisoma, Fukushima, Japan, Journal of Mineralogical and Petrological Sciences, 2023, Volume 118, Issue 1, Released on J-STAGE November 21, 2023, Advance online publication October 13, 2023, Online ISSN 1349-3825, Print ISSN 1345-6296, https://doi.org/10.2465/jmps.230327, https://www.jstage.jst.go.jp/article/jmps/118/1/118_230327/_article/-char/en

ⓘ Sonolite

Formula: Mn2+9(SiO4)4(OH)2

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ Spessartine

Formula: Mn2+3Al2(SiO4)3

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ Sphalerite

Formula: ZnS

Localities: Reported from at least 15 localities in this region.

ⓘ Sphalerite var. Marmatite

Formula: (Zn,Fe)S

ⓘ Spurrite

Formula: Ca5(SiO4)2(CO3)

ⓘ Starkeyite

Formula: MgSO4 · 4H2O

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Stephanite

Formula: Ag5SbS4

References:

Kamitani, M., Okumura, K., Teraoka, Y., Miyano, S., Watanabe, Y. (2007) Mineral Resources Map of East Asia, Geological Survey of Japan.

ⓘ Sterlinghillite

Formula: Mn2+3(AsO4)2 · 3H2O

References:

Matsubara, S., Miyawaki, R., Kato, A., Matsuyama, F., Mouri, T. and Suzuki, Y. (2001): Arseniopleite from the Gozaisho mine, Fukushima Prefecture, Japan. Bulletin of the National Science Museum, Tokyo, Ser. C, 27, 51-62.

ⓘ 'Stilbite Subgroup'

Formula: M6-7[Al8-9Si27-28O72] · nH2O

ⓘ Sulphur

Formula: S8

ⓘ Sylvite

Formula: KCl

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Synchysite-(Y)

Formula: CaY(CO3)2F

ⓘ Syngenite

Formula: K2Ca(SO4)2 · H2O

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Talc

Formula: Mg3Si4O10(OH)2

Localities:

Yaguki mine (Yakuki mine), Iwaki City, Fukushima Prefecture, Japan
Tsukigata mine, Koriyama City, Fukushima Prefecture, Japan
Uzumine mine (Udumine mine; Uzumine pegmatite), Mt Uzumine (Utsumine), Sukagawa City, Fukushima Prefecture, Japan

ⓘ Tengerite-(Y)

Formula: Y2(CO3)3 · 2-3H2O

ⓘ Tephroite

Formula: Mn2+2SiO4

Localities:

Gozaisho Mine, Iwaki City, Fukushima Prefecture, Japan
Kuratani mine, Nishiaizu-machi, Yama District, Fukushima Prefecture, Japan
Shinsawatari mine, Iwaki City, Fukushima Prefecture, Japan

ⓘ Tetraferriannite

Formula: KFe2+3(Si3Fe3+)O10(OH)2

ⓘ Thalénite-(Y)

Formula: Y3Si3O10F

Localities:

Nakase mine, Fukushima Prefecture, Japan
Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan
Sohri (Souri; Sori), Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan

ⓘ Thaumasite

Formula: Ca3(SO4)[Si(OH)6](CO3) · 12H2O

ⓘ Thénardite

Formula: Na2SO4

References:

Seki, Y., Hirano, T., & Watanabe, K. (1987). Salt crystallization decay and water-rock interaction of rock-cliff Budda sculptures at Yakushido Temple of Odaka Town, Fukushima, Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 82(7), 269-279.

ⓘ Thorite

Formula: Th(SiO4)

Localities:

Uzumine mine (Udumine mine; Uzumine pegmatite), Mt Uzumine (Utsumine), Sukagawa City, Fukushima Prefecture, Japan
Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan
Orebody No.2, Kannonyama pegmatite (Kannonyama mine), Wagu, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan

Description: Forms tiny cores in Xenotime-(Y) crystals.

ⓘ Thorite var. Thorogummite

Formula: (Th,U)(SiO4)1-x(OH)4x

Localities:

Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan
Ishikawa District, Fukushima Prefecture, Japan
Fusamata, Kawamata, Date District, Fukushima Prefecture, Japan
Atagoyama, Koriyama City, Fukushima Prefecture, Japan
Orebody No.2, Kannonyama pegmatite (Kannonyama mine), Wagu, Ishikawa town (Ishikawa-machi), Ishikawa District, Fukushima Prefecture, Japan

ⓘ 'Tirodite'

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ Titanite

Formula: CaTi(SiO4)O

Description: in pegmatite feldspar

ⓘ Tobermorite

Formula: Ca4Si6O17(H2O)2 · (Ca · 3H2O)

ⓘ Torbernite

Formula: Cu(UO2)2(PO4)2 · 12H2O

Localities:

Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan
Ishikawa District, Fukushima Prefecture, Japan
Fusamata, Kawamata, Date District, Fukushima Prefecture, Japan

ⓘ Tosudite

Formula: Na0.5(Al,Mg)6((Si,Al)8O18)(OH)12 · 5H2O

References:

Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872

ⓘ Tosudite var. Lithium Tosudite

Formula: Na0.5(Al,Mg)6((Si,Al)8O18)(OH)12 · 5H2O

References:

Gaines, Richard V., Skinner, H. Catherine W., Foord, Eugene E., Mason, Brian, Rosenzweig, Abraham, King, Vandall T. (1997) Dana's New Mineralogy (8th ed.) Wiley-Interscience. p.1872

ⓘ 'Tourmaline'

Formula: A D3G6 (T6O18)(BO3)3X3Z

ⓘ Tremolite

Formula: ◻Ca2Mg5(Si8O22)(OH)2

ⓘ 'Uduminelite'

Formula: Ca3Al8(PO4)2O12 · 2H2O

ⓘ Uedaite-(Ce)

Formula: (Mn2+Ce)(AlAlFe2+)O[Si2O7][SiO4](OH)

ⓘ 'Unnamed (CO3-analogue of Hydroxylellestadite)'

Formula: Ca5(SiO4)1.5(CO3,SO4)1.5(OH,Cl,F)

References:

Banno, Y., Miyawaki, R., Momma, K., Bunno, M. (2016) A CO3-bearing member of the hydroxylapatite–hydroxylellestadite series from Tadano, Fukushima Prefecture, Japan: CO3-SO4 substitution in the apatite–ellestadite series. Mineralogical Magazine, 80 (2) 363-370 doi:10.1180/minmag.2016.080.005

ⓘ Uraninite

Formula: UO2

Localities:

Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan
Ishikawa District, Fukushima Prefecture, Japan
Fusamata, Kawamata, Date District, Fukushima Prefecture, Japan
Atagoyama, Koriyama City, Fukushima Prefecture, Japan

ⓘ Uranophane

Formula: Ca(UO2)2(SiO3OH)2 · 5H2O

ⓘ Uvarovite

Formula: Ca3Cr2(SiO4)3

ⓘ Vashegyite

Formula: Al11(PO4)9(OH)6 · 38H2O

ⓘ Vesuvianite

Formula: Ca19Fe3+Al4(Al6Mg2)(◻4)◻[Si2O7]4[(SiO4)10]O(OH)9

ⓘ Villyaellenite

Formula: MnMn2Ca2(AsO4)2(HAsO4)2 · 4H2O

References:

Matsubara, S., Kato, A., Shimizu, M., Sekiuchi, K., and Suzuki, M. (1996) Romeite from the Gozaisho mine, Iwaki, Japan. Mineralogical Journal 18, 155-160.

ⓘ Wadalite (TL)

Formula: (Ca,Mg)6(Al,Fe3+)4((Si,Al)O4)3O4Cl3

ⓘ Wairakite

Formula: Ca(Al2Si4O12) · 2H2O

ⓘ Wallkilldellite

Formula: Ca2Mn2+3(AsO4)2(OH)4 · 9H2O

ⓘ Wavellite

Formula: Al3(PO4)2(OH,F)3 · 5H2O

ⓘ Wollastonite

Formula: Ca3(Si3O9)

ⓘ 'Xenotime'

ⓘ Xenotime-(Y)

Formula: Y(PO4)

Localities: Reported from at least 10 localities in this region.

ⓘ Xonotlite

Formula: Ca6(Si6O17)(OH)2

ⓘ Yarrowite

Formula: Cu9S8

ⓘ Yttrialite-(Y)

Formula: (Y,Th)2Si2O7

ⓘ Yttrotantalite-(Y)

Formula: (Y,U,Fe2+)(Ta,Nb)(O,OH)4

ⓘ Zeophyllite

Formula: Ca13Si10O28(OH)2F8 · 6H2O

ⓘ Zeunerite

Formula: Cu(UO2)2(AsO4)2 · 12H2O

ⓘ 'Zinnwaldite'

ⓘ Zircon

Formula: Zr(SiO4)

Localities: Reported from at least 12 localities in this region.