Fuka mine, Fuka, Bitchū, Takahashi City, Okayama Prefecture, Japan (original) (raw)

Description: (May include some of the pink hexagonal material previously considered to be thaumasite, although at least some of this material is the new species chiyokoite.)

ⓘ Cahnite

Formula: Ca2[B(OH)4](AsO4)

References:

Shiraga, Kanako, Kusachi, Isao, Kobayashi, Shoichi, Takechi, Yasushi (2002) Cahnite from Fuka, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 97 (2) 70-73 doi:10.2465/jmps.97.70

ⓘ Calciborite

Formula: Ca(B2O4)

References:

Kobayashi, Shoichi, Ando, Tamami, Kanayama, Akiko, Tanabe, Mitsuo, Kishi, Shigetomo, Kusachi, Isao (2014) Calciborite from the Fuka mine, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 109 (1) 13-17 doi:10.2465/jmps.130619

ⓘ Calcite

Formula: CaCO3

References:

Kusachi, I., Takechi, Y., Henmi, C., Kobayashi, S. (1998) Parasibirskite, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 62 (4) 521-525 doi:10.1180/002646198547891

Hayashi, Ayaka, Momma, Koichi, Miyawaki, Ritsuro, Tanabe, Mitsuo, Kishi, Shigetomo, Kobayashi, Shoichi, Kusachi, Isao (2017) Kurchatovite from the Fuka mine, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 112 (4) 159-165 doi:10.2465/jmps.170330

ⓘ Calzirtite

Formula: Ca2Zr5Ti2O16

ⓘ Chalcocite

Formula: Cu2S

References:

ⓘ Chalcopyrite

Formula: CuFeS2

References:

✪ Charlesite

Formula: Ca6(Al,Si)2(SO4)2[B(OH)4](OH,O)12 · 26H2O

References:

Kusachi, Isao, Shiraishi, Naoko, Shimada, Kazumasa, Ohnishi, Masayuki, Kobayashi, Shoichi (2008) CO3-rich charlesite from the Fuka mine, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 103 (1) 47-51 doi:10.2465/jmps.070827a

ⓘ Chiyokoite (TL)

Formula: Ca3Si(CO3)[B(OH)4]O (OH)5 · 12H2O

Type Locality:

References:

**Lykova, I., Chukanov, N. V., Pekov, I. V., Yapaskurt, V. O., Pautov, L. A., Karpenko, V. Y., Belakovskiy, D. I., Varlamov, D. A., Britvin, S. N., Scheidl, K. S. (2019) Chiyokoite, IMA 2019-054. CNMNC Newsletter No. 52. Mineralogical Magazine, 83 (6) 887-893 doi:10.1180/mgm.2019.73 **p.891

Lykova, Inna, Chukanov, Nikita V., Pekov, Igor V., Yapaskurt, Vasiliy O., Pautov, Leonid A., Karpenko, Vladimir Yu., Belakovskiy, Dmitry I., Varlamov, Dmitry A., Britvin, Sergey N., Scheidl, Katharina S. (2020) Chiyokoite, Ca3Si(CO3)[B(OH)4]O(OH)5·12H2O, a new ettringite-group mineral from the Fuka mine, Okayama Prefecture, Japan. The Canadian Mineralogist, 58 (5) 653-662 doi:10.3749/canmin.2000030

ⓘ Clinotobermorite (TL)

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

Type Locality:

ⓘ Cobaltite

Formula: CoAsS

References:

ⓘ Conichalcite

Formula: CaCu(AsO4)(OH)

ⓘ Cubanite

Formula: CuFe2S3

References:

ⓘ Cuspidine

Formula: Ca8(Si2O7)2F4

References:

ⓘ Datolite

Formula: CaB(SiO4)(OH)

ⓘ Datolite var. Bakerite

Formula: Ca4(H5B5Si3O20)

ⓘ Diopside

Formula: CaMgSi2O6

ⓘ Epidote

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

ⓘ Esseneite

Formula: CaFe3+[AlSiO6]

ⓘ Fedorovskite

Formula: Ca2Mg2B4O7(OH)6

Description: Fedorovskite was found as aggregates in crystalline limestone associated with gehlenite–spurrite skarns at the Fuka mine, Okayama Prefecture, Japan. Fedorovskite occurs as gray to dark gray aggregates of anhedral translucent crystals up to 0.8 mm across in association with shimazakiite, uralborite, vimsite, cuspidine, fluorite, and calcite. An electron microprobe analysis of fedorovskite gave an empirical formula Ca2.013(Mg1.901Fe0.072Mn0.023Zn0.002Co0.001Ni0.001Σ2.000(B3.852Si0.104)Σ3.956O7.000(OH5.421F0.579)Σ6.000 based on O = 7 and OH + F = 6. The mineral is orthorhombic, and the unit cell parameters refined from X–ray diffraction are a = 8.915(7), b = 13.086(16), c = 8.295(9) Å, and V = 967.7(18) Å³. The calculated density is 2.692 g cm⁻³. The fedorovskite from the Fuka mine was probably formed as a secondary mineral from calcium borates such as shimazakiite in a reaction with magnesium–bearing late hydrothermal solution.

References:

Kobayashi, Shoichi, Higashino, Fumiko, Tanabe, Mitsuo, Kishi, Shigetomo, Ichihashi, Yoshinori, Kusachi, Isao (2020) Fedorovskite from the Fuka mine, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 115 (6) 479-484 doi:10.2465/jmps.200512

ⓘ Fluorapatite

Formula: Ca5(PO4)3F

ⓘ Fluorite

Formula: CaF2

References:

ⓘ Foshagite

Formula: Ca4(Si3O9)(OH)2

ⓘ Frolovite

Formula: Ca[B(OH)4]2

References:

Kusachi, I., Takechi, Y., Henmi, C., Kobayashi, S. (1998) Parasibirskite, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 62 (4) 521-525 doi:10.1180/002646198547891

ⓘ Fukalite (TL)

Formula: Ca4[Si2O6][CO3](OH)2

Type Locality:

ⓘ 'Garnet Group'

Formula: X3Z2(SiO4)3

References:

ⓘ Gehlenite

Formula: Ca2Al[AlSiO7]

References:

Kusachi, I., Takechi, Y., Henmi, C., Kobayashi, S. (1998) Parasibirskite, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 62 (4) 521-525 doi:10.1180/002646198547891

ⓘ Grossular

Formula: Ca3Al2(SiO4)3

References:

ⓘ 'Grossular-Hibschite Series'

References:

Kusachi, I., Takechi, Y., Henmi, C., Kobayashi, S. (1998) Parasibirskite, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 62 (4) 521-525 doi:10.1180/002646198547891

ⓘ Gudmundite

Formula: FeSbS

References:

ⓘ Hematite

Formula: Fe2O3

✪ Henmilite (TL)

Formula: Ca2Cu[B(OH)4]2(OH)4

Type Locality:

References:

Nakai, I., Okada, H., Masutomi, K., Koyama, E., Nagashima, K. (1986) Henmilite, Ca2Cu(OH)4[B(OH)4]2, a new mineral from Fuka, Okayama Prefecture, Japan. American Mineralogist, 71 (9-10) 1234-1239

ⓘ Hexahydroborite

Formula: Ca[B(OH)4]2 · 2H2O or CaB2O4 · 6H2O

References:

Kusachi, Isao, Takechi, Yasushi, Kobayashi, Shoichi, Yamakawa, Junji, Nakamuta, Yoshihiro, Lee, Kyue-Hyung, Motomizu, Shoji (1999) Hexahydroborite from Fuka, Okayama Prefecture, Japan. Mineralogical Journal, 21 (1) 9-14 doi:10.2465/minerj.21.9

ⓘ Hillebrandite

Formula: Ca2(SiO3)(OH)2

ⓘ Hodrušite

Formula: Cu8Bi12S22

References:

ⓘ Hydroxyapophyllite-(K)

Formula: KCa4(Si8O20)(OH,F) · 8H2O

ⓘ Ikunolite

Formula: Bi4S3

References:

ⓘ Inyoite

Formula: Ca(H4B3O7)(OH) · 4H2O

Description: Crude crystals up to 2mm size in vugs in skarn.

References:

ⓘ Jennite

Formula: Ca9(Si3O9)2(OH)8 · 8H2O

ⓘ Johnbaumite

Formula: Ca5(AsO4)3(OH)

References:

ⓘ Kilchoanite

Formula: Ca6(SiO4)(Si3O10)

ⓘ Kinoite

Formula: Ca2Cu2(H2O)2[Si3O10]

References:

Kusachi, Isao, Nishimura, Makoto, Shiraga, Kanako, Kobayashi, Shoichi, Yamakawa, Junji (2001) Kinoite from Fuka, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 96 (1) 29-33 doi:10.2465/jmps.96.29

ⓘ Kurchatovite

Formula: Ca(Mg,Mn2+)[B2O5]

References:

ⓘ Kusachiite (TL)

Formula: CuBi2O4

Type Locality:

Description: In gehlenite-spurrite skarn and crystalline limestone.

ⓘ Löllingite

Formula: FeAs2

References:

ⓘ Mackinawite

Formula: FeS

References:

ⓘ Morimotoite (TL)

Formula: Ca3(TiFe2+)(SiO4)3

Type Locality:

References:

Henmi, Chiyoko, Kusachi, Isao, Henmi, Kitinosuke (1995) Morimotoite, Ca3TiFe2+Si3O12, a new titanian garnet from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 59 (394) 115-120 doi:10.1180/minmag.1995.59.394.11

ⓘ Nepheline

Formula: Na3K(Al4Si4O16)

ⓘ Nifontovite

Formula: Ca3B6O6(OH)12(H2O)2

References:

Kusachi, I., Takechi, Y., Henmi, C., Kobayashi, S. (1998) Parasibirskite, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 62 (4) 521-525 doi:10.1180/002646198547891

ⓘ Numanoite (TL)

Formula: Ca4Cu(B4O6(OH)6)(CO3)2

Type Locality:

References:

Ohnishi, M., Kusachi, I., Kobayashi, S., Yamakawa, J., Tanabe, M., Kishi, S., Yasuda, T. (2007) Numanoite, Ca4CuB4O6(OH)6(CO3)2, a new mineral species, the Cu analogue of borcarite from the Fuka mine, Okayama Prefecture, Japan. The Canadian Mineralogist, 45 (2) 307-315 doi:10.2113/gscanmin.45.2.307

ⓘ Okayamalite (TL)

Formula: Ca2B[BSiO7]

Type Locality:

References:

Matsubara, Satoshi, Miyawaki, Ritsuro, Kato, Akira, Yokoyama, Kazumi, Okamoto, Akiyoshi (1998) Okayamalite, Ca2B2SiO7, a new mineral, boron analogue of gehlenite. Mineralogical Magazine, 62 (5) 703-706 doi:10.1180/002646198547936

ⓘ Olshanskyite

Formula: Ca2[B3O3(OH)6](OH) · 3H2O

References:

Kusachi, I., Takechi, Y., Henmi, C., Kobayashi, S. (1998) Parasibirskite, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 62 (4) 521-525 doi:10.1180/002646198547891

ⓘ Oyelite (TL)

Formula: Ca10Si8B2O29 · 12.5H2O

Type Locality:

ⓘ Parasibirskite (TL)

Formula: Ca2(B2O5) · H2O

Type Locality:

References:

Kusachi, I., Takechi, Y., Henmi, C., Kobayashi, S. (1998) Parasibirskite, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 62 (4) 521-525 doi:10.1180/002646198547891

ⓘ Pentahydroborite

Formula: CaB2O(OH)6 · 2H2O

References:

Fujiwara, T., Takada, M., Masutomi, K., Isobe, T., Okada, H., Nakai, I., Nagashima, K. (1982) Pentahydroborite from Fuka, Okayama Prefecture, Japan. Chigaku Kenkyu [Geoscience Magazine], 33. 11-20

ⓘ Perovskite

Formula: CaTiO3

References:

ⓘ Plombièrite

Formula: [Ca4Si6O16(OH)2 · 2H2O] · (Ca · 5H2O)

ⓘ Prehnite

Formula: Ca2Al2Si3O10(OH)2

ⓘ Priceite

Formula: Ca2B5O7(OH)5 · H2O

References:

Kobayashi, Shoichi, Ando, Tamami, Tanabe, Mitsuo, Kishi, Shigetomo, Kusachi, Isao (2017) Priceite from the Fuka mine, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 112 (1) 20-24 doi:10.2465/jmps.160902

ⓘ Pyrite

Formula: FeS2

References:

ⓘ Pyrrhotite

Formula: Fe1-xS

References:

ⓘ Quartz

Formula: SiO2

References:

ⓘ Rankinite

Formula: Ca3Si2O7

References:

ⓘ Roweite

Formula: Ca2Mn2+2B4O7(OH)6

References:

ⓘ Scawtite

Formula: Ca7(Si3O9)2CO3 · 2H2O

ⓘ ~~Schorlomite~~

Formula: Ca3Ti2(SiO4)(Fe3+O4)2

ⓘ Shimazakiite (TL)

Formula: Ca2B2-xO5-3x(OH)3x (x = 0~0.06)

Type Locality:

References:

Kusachi, I., Kobayashi, S., Takechi, Y., Nakamuta, Y., Nagase, T., Yokoyama, K., Momma, K., Miyawaki, R., Shigeoka, M., Matsubara, S. (2013) Shimazakiite-4_M_ and shimazakiite-4_O_, Ca2B2O5, two polytypes of a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 77 (1) 93-105 doi:10.1180/minmag.2013.077.1.09

ⓘ Sibirskite

Formula: Ca2(HB2O5)(OH)

References:

Kusachi, I., Takechi, Y., Henmi, C., Kobayashi, S. (1998) Parasibirskite, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 62 (4) 521-525 doi:10.1180/002646198547891

ⓘ Sillénite

Formula: Bi12SiO20

Habit: Cubes to 5mm

ⓘ Solongoite

Formula: Ca2(H3B3O7)(OH)Cl

ⓘ Sphalerite

Formula: ZnS

References:

ⓘ Spurrite

Formula: Ca5(SiO4)2(CO3)

References:

Kusachi, I., Takechi, Y., Henmi, C., Kobayashi, S. (1998) Parasibirskite, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 62 (4) 521-525 doi:10.1180/002646198547891

ⓘ Stringhamite

Formula: CaCu(SiO4) · H2O

ⓘ Tacharanite

Formula: Ca12Al2Si18O33 (OH)36

References:

ⓘ Takedaite (TL)

Formula: Ca3[BO3]2

Type Locality:

Description: In gehlenite-spurrite skarn and crystalline limestone.

References:

Kusachi, I., Takechi, Y., Henmi, C., Kobayashi, S. (1998) Parasibirskite, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 62 (4) 521-525 doi:10.1180/002646198547891

ⓘ Talnakhite

Formula: Cu9(Fe,Ni)8S16

References:

ⓘ 'Tennantite Subgroup'

Formula: Cu6(Cu4C2+2)As4S12S

References:

ⓘ Tenorite

Formula: CuO

References:

ⓘ 'Tetrahedrite Subgroup'

Formula: Cu6(Cu4C2+2)Sb4S12S

References:

ⓘ Thaumasite

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

ⓘ Tilleyite

Formula: Ca5(Si2O7)(CO3)2

References:

ⓘ Titanite

Formula: CaTi(SiO4)O

ⓘ Tobermorite

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

ⓘ 'UM2008-07-CO:AlBCaHSSi'

Formula: Ca6(Al,Si)2(CO3,SO4)2[B(OH)4](OH,O)12 · 26H2O

References:

ⓘ Uralborite

Formula: Ca2[B3O3(OH)5 · OB(OH)3]

References:

Kusachi, Isao, Shiraga, Kanako, Kobayashi, Shoichi, Yamakawa, Junji, Takechi, Yasushi (2000) Uralborite from Fuka, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 95 (4) 43-47 doi:10.2465/jmps.95.43

ⓘ Valleriite

Formula: (Fe2+,Cu)4(Mg,Al)3S4(OH,O)6

References:

ⓘ Vesuvianite

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

References:

Kusachi, I., Takechi, Y., Henmi, C., Kobayashi, S. (1998) Parasibirskite, a new mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine, 62 (4) 521-525 doi:10.1180/002646198547891

ⓘ Vimsite

Formula: CaB2O2(OH)4

References:

Kobayashi, Shoichi, Yuasa, Manami, Tanabe, Mitsuo, Kishi, Shigetomo, Kusachi, Isao (2019) Vimsite from the Fuka mine, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 114 (5) 219-223 doi:10.2465/jmps.181121

ⓘ Vivianite

Formula: Fe2+Fe2+2(PO4)2 · 8H2O

References:

ⓘ Wittichenite

Formula: Cu3BiS3

References:

ⓘ Wollastonite

Formula: Ca3(Si3O9)

ⓘ 'Wollastonite-7A'

Formula: CaSiO3

ⓘ Xonotlite

Formula: Ca6(Si6O17)(OH)2

ⓘ Zálesíite

Formula: CaCu6(AsO4)2(AsO3OH)(OH)6 · 3H2O

References:

Tanaka, Takahiro, Minakawa, Tetsuo, Kusachi, Isao, Tanabe, Mitsuo (2009) Bi-bearing and REE-free zálesíite from the Fuka mine, Okayama Prefecture, Japan. Journal of Mineralogical and Petrological Sciences, 104 (3) 164-167 doi:10.2465/jmps.081021c

ⓘ Zircon

Formula: Zr(SiO4)