Shimane Prefecture, Japan (original) (raw)

Formula: Ag2S

Localities:

Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Dohgamaru mine, Ochi District, Shimane Prefecture, Japan
Obayashi mine, Ochi District, Shimane Prefecture, Japan
Eikyu deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Fukuishi deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan

ⓘ Actinolite

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

ⓘ Aegirine

Formula: NaFe3+Si2O6

Localities:

Hamada alkaline volcanics, Hamada City, Shimane Prefecture, Japan
Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Kawamoto Lava flow, Ochi District, Shimane Prefecture, Japan

ⓘ Aegirine var. Titanium-bearing Aegirine

Formula: Na(Fe,Ti)Si2O6

References:

Nagao, T., Matsumoto, Y., Matsuda, T., Iizumi, S., & Oda, M. (1986). Cenozoic minette from Kawamoto district, Shimane Prefecture, Southwest Japan. The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 81(10), 423-426.

ⓘ Aegirine-augite

Formula: (NaaCabFe2+cMgd)(Fe3+eAlfFe2+gMgh)Si2O6

References:

Nakamura, E., Campbell, I. H., McCulloch, M. T., & Sun, S. S. (1989). Chemical geodynamics in a back arc region around the Sea of Japan: implications for the genesis of alkaline basalts in Japan, Korea, and China. Journal of Geophysical Research: Solid Earth, 94(B4), 4634-4654.

ⓘ Aenigmatite

Formula: Na4[Fe2+10Ti2]O4[Si12O36]

References:

ⓘ Aikinite

Formula: PbCuBiS3

ⓘ Åkermanite

Formula: Ca2Mg[Si2O7]

ⓘ Alabandite

Formula: MnS

ⓘ Albite

Formula: Na(AlSi3O8)

Localities:

Izumo City, Shimane Prefecture, Japan
Shikuma, Gotsu City, Shimane Prefecture, Japan
Shimoganya quarry, Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan

ⓘ Albite var. Andesine

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

Localities:

Shimoganya quarry, Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan

Description: "potash-andesine"

ⓘ Albite var. Anorthoclase

Formula: (Na,K)AlSi3O8

ⓘ Albite var. Oligoclase

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

References:

ⓘ Aleksite

Formula: PbBi2Te2S2

ⓘ 'Alkali Feldspar'

References:

ⓘ 'Amphibole Supergroup'

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

References:

ⓘ Analcime

Formula: Na(AlSi2O6) · H2O

Localities:

Kuniga, Nishinoshima, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Onimura quarry, Ōda City, Shimane Prefecture, Japan
Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Noyamadake, Hamada City, Shimane Prefecture, Japan

ⓘ Andalusite

Formula: Al2(SiO4)O

References:

Takagi, T., Naito, K., Collins, L. G., & Iizumi, S. (2007). Plagioclase–quartz Rocks of Metasomatic Origin at the Expense of Granitic Rocks of the Komaki District, Southwestern Japan. The Canadian Mineralogist, 45(3), 559-580.

ⓘ Andradite

Formula: Ca3Fe3+2(SiO4)3

ⓘ 'Andradite-Grossular Series'

ⓘ Anorthite

Formula: Ca(Al2Si2O8)

Localities:

Shimoganya quarry, Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Ohgusoyama, Hamada City, Shimane Prefecture, Japan
Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Hamada lava flow, Hamada City, Shimane Prefecture, Japan

ⓘ Anorthite var. Bytownite

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

ⓘ Anorthite var. Labradorite

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

Localities:

ⓘ 'Apatite'

Formula: Ca5(PO4)3(Cl/F/OH)

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

ⓘ Aragonite

Formula: CaCO3

ⓘ Arfvedsonite

Formula: [Na][Na2][Fe2+4Fe3+]Si8O22(OH)2

References:

ⓘ Arsenic

Formula: As

ⓘ Arsenohauchecornite

Formula: Ni18Bi3AsS16

ⓘ Arsenopyrite

Formula: FeAsS

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

ⓘ Augite

Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6

Localities:

ⓘ Augite var. Ferroaugite

References:

ⓘ Augite var. Titanium-bearing Augite

Formula: (Ca,Na)(Mg,Ti, Fe,Al,)(Si,Al)2O6

Localities:

Ohgusoyama, Hamada City, Shimane Prefecture, Japan
Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Noyamadake, Hamada City, Shimane Prefecture, Japan

ⓘ Azurite

Formula: Cu3(CO3)2(OH)2

ⓘ Babingtonite

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

ⓘ Baryte

Formula: BaSO4

ⓘ Bementite

Formula: Mn7Si6O15(OH)8

ⓘ Benavidesite

Formula: Pb4MnSb6S14

ⓘ 'Biotite'

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

Localities:

Ohgusoyama, Hamada City, Shimane Prefecture, Japan
Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Komaki mine, Komaki, Okuizumo, Nita District, Shimane Prefecture, Japan
Shikatagahara mine, Shimane Prefecture, Japan

Description: (in country rock granodiorite, hornfels and schist)

ⓘ Bismuth

Formula: Bi

ⓘ Bismuthinite ?

Formula: Bi2S3

ⓘ Bismutohauchecornite

Formula: Ni9Bi2S8

ⓘ Bornite

Formula: Cu5FeS4

Localities:

Tsumo mine, Masuda City, Shimane Prefecture, Japan
Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Fukuishi deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Maruyama mine, Tsumo mine, Masuda City, Shimane Prefecture, Japan

ⓘ Calcite

Formula: CaCO3

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

ⓘ Canfieldite

Formula: Ag8SnS6

ⓘ Canfieldite var. Tellurium-bearing Canfieldite

Formula: Ag8(Sn,Ge)(S,Te)6

ⓘ Cassiterite

Formula: SnO2

Localities:

Tsumo mine, Masuda City, Shimane Prefecture, Japan
Masuda mine, Shimane Prefecture, Japan
Dohgamaru mine, Ochi District, Shimane Prefecture, Japan
Maruyama mine, Tsumo mine, Masuda City, Shimane Prefecture, Japan

Formula: SrSO4

Formula: PbCO3

Formula: (Ca,K2,Na2)2[Al2Si4O12]2 · 12H2O

ⓘ Chalcocite

Formula: Cu2S

Localities:

Dohgamaru mine, Ochi District, Shimane Prefecture, Japan
Eikyu deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan

ⓘ Chalcopyrite

Formula: CuFeS2

Localities: Reported from at least 13 localities in this region.

ⓘ Chenite

Formula: Pb4Cu(SO4)2(OH)6

ⓘ Chlorargyrite

Formula: AgCl

ⓘ 'Chlorite Group'

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

ⓘ Chondrodite

Formula: Mg5(SiO4)2F2

ⓘ Clerite

Formula: MnSb2S4

ⓘ Clinochlore

Formula: Mg5Al(AlSi3O10)(OH)8

Description: "Pseudophite"

ⓘ Clinochlore var. Sheridanite

Formula: (Mg,Al,Fe)6(Si,Al)4O10(OH)8

ⓘ 'Clino-ferro-suenoite'

Formula: ◻{Mn2+2}{Fe2+5}(Si8O22)(OH)2

ⓘ 'Clinopyroxene Subgroup'

Localities:

Tsumo mine, Masuda City, Shimane Prefecture, Japan
Dohgamaru mine, Ochi District, Shimane Prefecture, Japan
Hamada lava flow, Hamada City, Shimane Prefecture, Japan
Maruyama mine, Tsumo mine, Masuda City, Shimane Prefecture, Japan

ⓘ Clinozoisite

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

ⓘ Copper

Formula: Cu

ⓘ Cordierite

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

References:

ⓘ Corundum

Formula: Al2O3

ⓘ Covellite

Formula: CuS

Localities:

Dohgamaru mine, Ochi District, Shimane Prefecture, Japan
Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Fukuishi deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan

ⓘ Cowlesite

Formula: CaAl2Si3O10 · 6H2O

ⓘ 'Crossite'

ⓘ Diopside

Formula: CaMgSi2O6

Localities:

Ohgusoyama, Hamada City, Shimane Prefecture, Japan
Shimoganya quarry, Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Tsumo mine, Masuda City, Shimane Prefecture, Japan
Kawamoto Lava flow, Ochi District, Shimane Prefecture, Japan

ⓘ Diopside var. Chromium-bearing Diopside

Formula: Ca(Mg,Cr)Si2O6

ⓘ 'Diopside-Hedenbergite Series'

ⓘ Dioptase

Formula: CuSiO3 · H2O

ⓘ Enargite

Formula: Cu3AsS4

ⓘ Enstatite

Formula: Mg2Si2O6

ⓘ Enstatite var. Bronzite

Formula: (Mg,Fe2+)2[SiO3]2

ⓘ Epidote

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

Localities:

Dohgamaru mine, Ochi District, Shimane Prefecture, Japan
Shikuma, Gotsu City, Shimane Prefecture, Japan
Okuizumo, Nita District, Shimane Prefecture, Japan
Sasagatani Mine, Tsuwano, Kanoashi District, Shimane Prefecture, Japan

ⓘ Fayalite

Formula: Fe2+2SiO4

References:

ⓘ 'Fayalite-Forsterite Series'

Localities:

Ohgusoyama, Hamada City, Shimane Prefecture, Japan
Shimoganya quarry, Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Noyamadake, Hamada City, Shimane Prefecture, Japan
Hamada lava flow, Hamada City, Shimane Prefecture, Japan

ⓘ Ferrimolybdite

Formula: Fe2(MoO4)3 · nH2O

Localities:

Higuchidani section, Daito mine, Daito, Unnan City, Shimane Prefecture, Japan
Higashiyama mine, Daito, Unnan City, Shimane Prefecture, Japan
Ino mine, Shimane Prefecture, Japan

ⓘ Ferriprehnite (TL)

Formula: Ca2Fe3+(Si3AlO10)(OH)2

Type Locality:

References:

NAGASHIMA, Mariko, NISHIO–HAMANE, Daisuke, ITO, Shuichi, TANAKA, Takahiro (2021) Ferriprehnite, Ca2Fe3+(AlSi)O10(OH)2, an Fe3+ analogue of prehnite, from Kouragahana, Shimane Peninsula, Japan. Journal of Mineralogical and Petrological Sciences, 116 (3). 129-139 doi:10.2465/jmps.210127

ⓘ Ferrobustamite

Formula: CaFe2+(Si2O6)

ⓘ Ferro-katophorite

Formula: {Na}{CaNa}{Fe2+4Al}[(AlSi7)O22](OH)2

ⓘ Gahnite

Formula: ZnAl2O4

ⓘ Galena

Formula: PbS

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

ⓘ 'Garnet Group'

Formula: X3Z2(SiO4)3

Localities:

Dohgamaru mine, Ochi District, Shimane Prefecture, Japan
Komaki mine, Komaki, Okuizumo, Nita District, Shimane Prefecture, Japan
Sasagatani Mine, Tsuwano, Kanoashi District, Shimane Prefecture, Japan
Maruyama mine, Tsumo mine, Masuda City, Shimane Prefecture, Japan

ⓘ Garronite-Ca

Formula: Na2Ca5Al12Si20O64 · 27H2O

ⓘ 'Gismondine Subgroup'

ⓘ 'Glass'

ⓘ Gobbinsite

Formula: Na5(Si11Al5)O32 · 11H2O

ⓘ Goethite

Formula: α-Fe3+O(OH)

ⓘ Gold

Formula: Au

Localities:

Tsumo mine, Masuda City, Shimane Prefecture, Japan
Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Eikyu deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan

ⓘ Gold var. Electrum

Formula: (Au,Ag)

Localities:

Obayashi mine, Ochi District, Shimane Prefecture, Japan
Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Eikyu deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan

ⓘ Gonnardite

Formula: (Na,Ca)2(Si,Al)5O10 · 3H2O

ⓘ Graphite

Formula: C

ⓘ Grossular

Formula: Ca3Al2(SiO4)3

ⓘ Gypsum

Formula: CaSO4 · 2H2O

Localities:

Matsushiro mine, Ōda City, Shimane Prefecture, Japan
Udo mine, Izumo City, Shimane Prefecture, Japan
Iwami mine, Ōda City, Shimane Prefecture, Japan
Wanibuchi mine, Izumo City, Shimane Prefecture, Japan

ⓘ Halloysite

Formula: Al2(Si2O5)(OH)4

References:

ⓘ Hedenbergite

Formula: CaFe2+Si2O6

Localities:

Sasagatani Mine, Tsuwano, Kanoashi District, Shimane Prefecture, Japan
Tsumo mine, Masuda City, Shimane Prefecture, Japan
Dohgamaru mine, Ochi District, Shimane Prefecture, Japan
Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Toyoka mine, Tsuwano, Kanoashi District, Shimane Prefecture, Japan

ⓘ Hematite

Formula: Fe2O3

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

ⓘ Hematite var. Martite

Formula: Fe2O3

ⓘ Hercynite

Formula: Fe2+Al2O4

ⓘ Hercynite var. Picotite

Formula: (Fe,Mg)(Al,Cr)2O4

ⓘ Hessite

Formula: Ag2Te

Localities:

Tsumo mine, Masuda City, Shimane Prefecture, Japan
Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Maruyama mine, Tsumo mine, Masuda City, Shimane Prefecture, Japan

ⓘ 'Hornblende Root Name Group'

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

Description: (in country rock, granodiorite)

ⓘ Hydrowoodwardite

Formula: (Cu1-xAlx)(OH)2[SO4]x/2 · nH2O

ⓘ 'Hypersthene'

Formula: (Mg,Fe)SiO3

References:

ⓘ 'Iddingsite'

Formula: MgO · Fe2O3 · 3SiO2 · 4H2O

ⓘ 'Illite-2M'

ⓘ Ilmenite

Formula: Fe2+TiO3

ⓘ Ilvaite

Formula: CaFe3+Fe2+2(Si2O7)O(OH)

Formula: Ag3CuS2

Formula: Bi4Te2S

Formula: Ca2Fe2+Fe3+2[Si2O6OH][SiO4](OH)2(OH)

ⓘ Kaersutite

Formula: NaCa2(Mg3AlTi4+)(Si6Al2)O22O2

References:

ⓘ Kaolinite

Formula: Al2(Si2O5)(OH)4

ⓘ 'K Feldspar'

Localities:

Dohgamaru mine, Ochi District, Shimane Prefecture, Japan
Corundum occurrence, Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Umanotani-Shiroyama Quartz-Feldspar Mine, Masuda City, Shimane Prefecture, Japan

ⓘ Lawsonite

Formula: CaAl2(Si2O7)(OH)2 · H2O

ⓘ 'Lévyne'

ⓘ Lévyne-Ca

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

Formula: Cu3AsS4

Formula: FeS

Formula: Fe2+Fe3+2O4

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

ⓘ Magnetite var. Titanium-bearing Magnetite

Formula: Fe2+(Fe3+,Ti)2O4

ⓘ Malachite

Formula: Cu2(CO3)(OH)2

ⓘ Malayaite

Formula: CaSn(SiO4)O

ⓘ Marcasite

Formula: FeS2

Localities:

Sasagatani Mine, Tsuwano, Kanoashi District, Shimane Prefecture, Japan
Dohgamaru mine, Ochi District, Shimane Prefecture, Japan
Obayashi mine, Ochi District, Shimane Prefecture, Japan

ⓘ Matildite

Formula: AgBiS2

ⓘ Mawsonite

Formula: Cu6Fe2SnS8

ⓘ Mckinstryite

Formula: Ag5-xCu3+xS4

ⓘ 'Melilite Group'

Formula: Ca2M(XSiO7)

ⓘ Mendozite

Formula: NaAl(SO4)2 · 11H2O

ⓘ Metaschoepite

Formula: (UO2)8O2(OH)12 · 10H2O

ⓘ Molybdenite

Formula: MoS2

Localities: Reported from at least 13 localities in this region.

ⓘ Montmorillonite

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

ⓘ Muscovite

Formula: KAl2(AlSi3O10)(OH)2

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

ⓘ Muscovite var. Illite

Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2

ⓘ Muscovite var. Sericite

Formula: KAl2(AlSi3O10)(OH)2

Localities:

Mitoya-cho, Iishi District, Shimane Prefecture, Japan
Dohgamaru mine, Ochi District, Shimane Prefecture, Japan
Kakeya mine, Unnan City, Shimane Prefecture, Japan
Un-nan mine (Unnan mine), Mitoya-cho, Iishi District, Shimane Prefecture, Japan
Komaki mine, Komaki, Okuizumo, Nita District, Shimane Prefecture, Japan

ⓘ Nepheline

Formula: Na3K(Al4Si4O16)

Localities:

Hamada alkaline volcanics, Hamada City, Shimane Prefecture, Japan
Noyamadake, Hamada City, Shimane Prefecture, Japan
Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Hamada lava flow, Hamada City, Shimane Prefecture, Japan

ⓘ 'Orthopyroxene Subgroup'

Description: "pseudo-hypersthene"

ⓘ Pearceite

Formula: [Ag6As2S7][Ag9CuS4]

ⓘ Pentlandite

Formula: (NixFey)Σ9S8

ⓘ Petzite

Formula: Ag3AuTe2

ⓘ Phillipsite-Ca

Formula: Ca3(Si10Al6)O32 · 12H2O

ⓘ Phillipsite-K

Formula: (K,Na,Ca0.5,Ba0.5)4-7[Al4-7Si12-9O32] . 12H2O

ⓘ Phlogopite

Formula: KMg3(AlSi3O10)(OH)2

ⓘ Piemontite

Formula: (CaCa)(AlAlMn3+)O[Si2O7][SiO4](OH)

ⓘ 'Plagioclase'

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

Localities:

Okuizumo, Nita District, Shimane Prefecture, Japan
Dogo Island, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan
Noyamadake, Hamada City, Shimane Prefecture, Japan

ⓘ Polybasite

Formula: [Ag6Sb2S7][Ag9CuS4]

ⓘ Powellite

Formula: Ca(MoO4)

ⓘ Prehnite

Formula: Ca2Al2Si3O10(OH)2

ⓘ Pumpellyite-(Fe2+)

Formula: Ca2Fe2+Al2[Si2O6OH][SiO4](OH)2(OH)

ⓘ Pyrargyrite

Formula: Ag3SbS3

ⓘ Pyrite

Formula: FeS2

Localities: Reported from at least 21 localities in this region.

ⓘ 'Pyroxene Group'

Formula: ADSi2O6

ⓘ Pyrrhotite

Formula: Fe1-xS

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

ⓘ Quartz

Formula: SiO2

Localities: Reported from at least 26 localities in this region.

ⓘ Quartz var. Agate

ⓘ Quartz var. Chalcedony

Formula: SiO2

ⓘ Quartz var. Rock Crystal

Formula: SiO2

ⓘ Realgar

Formula: As4S4

ⓘ Rhodochrosite

Formula: MnCO3

ⓘ Rhodonite

Formula: CaMn3Mn[Si5O15]

ⓘ Rhönite

Formula: Ca4[Mg8Fe3+2Ti2]O4[Si6Al6O36]

ⓘ Riebeckite

Formula: ◻[Na2][Fe2+3Fe3+2]Si8O22(OH)2

References:

ⓘ Sanidine

Formula: K(AlSi3O8)

References:

ⓘ Scheelite

Formula: Ca(WO4)

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

ⓘ Scorodite

Formula: Fe3+AsO4 · 2H2O

ⓘ Shattuckite

Formula: Cu5(Si2O6)2(OH)2

ⓘ Siderite

Formula: FeCO3

Localities:

Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Omori mine, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Fukuishi deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Eikyu deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan

ⓘ Silver

Formula: Ag

Localities:

Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Obayashi mine, Ochi District, Shimane Prefecture, Japan
Eikyu deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Fukuishi deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan

ⓘ 'Smectite Group'

Formula: A0.3D2-3[T4O10]Z2 · nH2O

Localities:

Mitoya-cho, Iishi District, Shimane Prefecture, Japan
Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Yano-Maki mine, Yokota, Okuizumo, Nita District, Shimane Prefecture, Japan

ⓘ Sphalerite

Formula: ZnS

Localities: Reported from at least 13 localities in this region.

ⓘ Stannite

Formula: Cu2FeSnS4

ⓘ Stannoidite

Formula: Cu+6Cu2+2(Fe2+,Zn)3Sn2S12

ⓘ Stibnite

Formula: Sb2S3

ⓘ Stromeyerite

Formula: AgCuS

Localities:

Eikyu deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Fukuishi deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan

ⓘ Sylvanite

Formula: AgAuTe4

ⓘ 'Tennantite Subgroup'

Formula: Cu6(Cu4C2+2)As4S12S

ⓘ 'Tennantite-Tetrahedrite Series'

References:

Akasaka, M., Komuro, H., & Ohira, H. (2007, August). Geology, mineralogy, and genesis of the Iwami-Ginzan silver mine, Japan. In Geochimica Et Cosmochimica Acta (Vol. 71, No. 15, Pp. A8-a8). the Boulevard, Langford Lane, Kidlington, Oxford Ox5 1gb, England: Pergamon-elsevier Science Ltd.

ⓘ Tephroite

Formula: Mn2+2SiO4

ⓘ Tetradymite

Formula: Bi2Te2S

ⓘ 'Tetrahedrite Subgroup'

Formula: Cu6(Cu4C2+2)Sb4S12S

ⓘ 'Thomsonite Subgroup'

Localities:

Kouragahana, Kitaura, Matsue City, Shimane Prefecture, Japan
Kuniga, Nishinoshima, Oki Islands, Okinoshima, Oki District, Shimane Prefecture, Japan

ⓘ Titanite

Formula: CaTi(SiO4)O

ⓘ Topaz

Formula: Al2(SiO4)(F,OH)2

ⓘ Tremolite

Formula: ◻Ca2Mg5(Si8O22)(OH)2

ⓘ Tsumoite (TL)

Formula: BiTe

Type Locality:

References:

Anthony, John Williams, Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. (1990) Handbook of Mineralogy Vol. 1 - Elements, Sulfides, Sulfosalts. Mineral Data Publishing, Tucson, Arizona.

ⓘ Vesuvianite

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

ⓘ Wairakite

Formula: Ca(Al2Si4O12) · 2H2O

ⓘ Wittichenite

Formula: Cu3BiS3

Localities:

Tsumo mine, Masuda City, Shimane Prefecture, Japan
Eikyu deposit, Iwami mine (Iwami-ginzan), Ōda City, Shimane Prefecture, Japan
Maruyama mine, Tsumo mine, Masuda City, Shimane Prefecture, Japan

ⓘ 'Wolframite Group'

Localities:

Komaki mine, Komaki, Okuizumo, Nita District, Shimane Prefecture, Japan
Sasagase mine, Tsuwano, Kanoashi District, Shimane Prefecture, Japan
Masuda mine, Shimane Prefecture, Japan
Kiyomizu mine, Shimane Prefecture, Japan
Shikatagahara mine, Shimane Prefecture, Japan

ⓘ Wollastonite

Formula: Ca3(Si3O9)

Localities:

Tsumo mine, Masuda City, Shimane Prefecture, Japan
Sasagatani Mine, Tsuwano, Kanoashi District, Shimane Prefecture, Japan
Maruyama mine, Tsumo mine, Masuda City, Shimane Prefecture, Japan

ⓘ Woodwardite

Formula: Cu1-xAlx(OH)2(SO4)x/2 · nH2O

ⓘ 'Zeolite Group'

ⓘ Zircon

Formula: Zr(SiO4)

Description: (in granodiorite country rock)