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Washington Co., Idaho, USA

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Detailed Mineral List:


Acanthite
Formula: Ag2S
Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'commodity:Aggregates'
Localities: Reported from at least 6 localities in this region.
Analcime
Formula: Na(AlSi2O6) · H2O
'Andesite'
Localities: Reported from at least 9 localities in this region.
'Andradite-Grossular Series'
Anglesite
Formula: PbSO4
'Aplitic granite'
'Apophyllite'
'Ash'
Augite
Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6
Baryte
Formula: BaSO4
Beidellite
Formula: (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O
'Biotite'
Bismuth
Formula: Bi
Bornite
Formula: Cu5FeS4
Boulangerite
Formula: Pb5Sb4S11
Bournonite
Formula: PbCuSbS3
Calcite
Formula: CaCO3
Localities: Reported from at least 15 localities in this region.
Cerussite
Formula: PbCO3
'Chabazite'
Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 32 localities in this region.
Chamosite
Formula: (Fe2+,Mg,Al,Fe3+)6(Si,Al)4O10(OH,O)8
Chlorargyrite
Formula: AgCl
'Chlorite Group'
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cinnabar
Formula: HgS
Localities: Reported from at least 9 localities in this region.
'Clay'
'commodity:Clay'
Localities: Reported from at least 6 localities in this region.
'commodity:Clay'
Localities: Reported from at least 6 localities in this region.
'Clays'
'Conglomerate'
'commodity:Copper'
Formula: Cu
Localities: Reported from at least 35 localities in this region.
Cuprite
Formula: Cu2O
'Diatomite'
Formula: SiO2 · nH2O
Localities: Reported from at least 9 localities in this region.
'Diatomite'
Formula: SiO2 · nH2O
Localities: Reported from at least 9 localities in this region.
'Diatomite'
Formula: SiO2 · nH2O
Localities: Reported from at least 9 localities in this region.
'Diatomite'
Formula: SiO2 · nH2O
Localities: Reported from at least 9 localities in this region.
'Diatomite'
Formula: SiO2 · nH2O
Localities: Reported from at least 9 localities in this region.
'Diatomite'
Formula: SiO2 · nH2O
Localities: Reported from at least 9 localities in this region.
'commodity:Diatomite'
Localities: Reported from at least 9 localities in this region.
'commodity:Diatomite'
Localities: Reported from at least 9 localities in this region.
'commodity:Diatomite'
Localities: Reported from at least 9 localities in this region.
'commodity:Diatomite'
Localities: Reported from at least 9 localities in this region.
'commodity:Diatomite'
Localities: Reported from at least 9 localities in this region.
'Diorite'
Dravite
Formula: Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Enargite
Formula: Cu3AsS4
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
'Fine-grained ("volcanic") normal crystalline igneous rock'
'Gabbro'
Galena
Formula: PbS
Localities: Reported from at least 14 localities in this region.
'Garnet'
Formula: X3Z2(SiO4)3
Goethite
Formula: α-Fe3+O(OH)
Gold
Formula: Au
Gold
Formula: Au
Gold
Formula: Au
Gold
Formula: Au
Gold
Formula: Au
'commodity:Gold'
Formula: Au
Localities: Reported from at least 22 localities in this region.
'commodity:Gold'
Formula: Au
Localities: Reported from at least 22 localities in this region.
'commodity:Gold'
Formula: Au
Localities: Reported from at least 22 localities in this region.
'commodity:Gold'
Formula: Au
Localities: Reported from at least 22 localities in this region.
'commodity:Gold'
Formula: Au
Localities: Reported from at least 22 localities in this region.
'Granite'
'Granodiorite'
Localities: Reported from at least 7 localities in this region.
'Gravel'
'Greenstone'
Grossular
Formula: Ca3Al2(SiO4)3
Gypsum
Formula: CaSO4 · 2H2O
'commodity:Gypsum & Anhydrite'
'Halloysite'
Formula: Al2(Si2O5)(OH)4
Hematite
Formula: Fe2O3
Localities: Reported from at least 7 localities in this region.
Hematite var: Specularite
Formula: Fe2O3
'commodity:Iron'
Formula: Fe
Localities: Reported from at least 6 localities in this region.
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Kaolinite
Formula: Al2(Si2O5)(OH)4
'K Feldspar'
'Latite'
'commodity:Lead'
Formula: Pb
Localities: Reported from at least 8 localities in this region.
'Limestone'
Localities: Reported from at least 7 localities in this region.
'Limonite'
Formula: (Fe,O,OH,H2O)
Magnetite
Formula: Fe2+Fe3+2O4
Localities: Reported from at least 11 localities in this region.
Malachite
Formula: Cu2(CO3)(OH)2
Localities: Reported from at least 10 localities in this region.
'commodity:Manganese'
Formula: Mn
'Marble'
Marcasite
Formula: FeS2
'commodity:Mercury'
Formula: Hg
Localities: Reported from at least 10 localities in this region.
Mesolite
Formula: Na2Ca2Si9Al6O30 · 8H2O
'commodity:Mica'
'Mica Group'
Molybdenite
Formula: MoS2
'commodity:Molybdenum'
Formula: Mo
'Mud'
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Opal
Formula: SiO2 · nH2O
Localities: Reported from at least 7 localities in this region.
Orthoclase
Formula: K(AlSi3O8)
'Phillipsite'
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
'Phyllite'
'Porphyry'
Localities: Reported from at least 9 localities in this region.
Pyrite
Formula: FeS2
Localities: Reported from at least 33 localities in this region.
Pyrolusite
Formula: Mn4+O2
Pyrrhotite
Formula: Fe7S8
Quartz
Formula: SiO2
Localities: Reported from at least 45 localities in this region.
Quartz var: Agate
Quartz var: Amethyst
Formula: SiO2
Quartz var: Chalcedony
Formula: SiO2
Quartz var: Jasper
'Quartz-diorite'
'Quartzite'
'Quartz-latite'
'Rhyolite'
'Sand'
'Sandstone'
Localities: Reported from at least 6 localities in this region.
'Scapolite'
'Schist'
'Sedimentary breccia'
'Shale'
Localities: Reported from at least 9 localities in this region.
Siderite
Formula: FeCO3
'commodity:Silica'
'Silt'
Silver
Formula: Ag
'commodity:Silver'
Formula: Ag
Localities: Reported from at least 19 localities in this region.
'commodity:Silver'
Formula: Ag
Localities: Reported from at least 19 localities in this region.
'Skarn'
'Slate'
Sphalerite
Formula: ZnS
Localities: Reported from at least 16 localities in this region.
Stannite
Formula: Cu2FeSnS4
'Tactite'
Tetrahedrite
Formula: Cu6[Cu4(Fe,Zn)2]Sb4S13
Localities: Reported from at least 10 localities in this region.
Thomsonite-Ca
Formula: NaCa2[Al5Si5O20] · 6H2O
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Localities: Reported from at least 9 localities in this region.
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
'Tuff'
Wurtzite
Formula: (Zn,Fe)S
'commodity:Zinc'
Formula: Zn
Mineral and/or Locality  
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