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Park Co., Montana, USA

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Detailed Mineral List:

Acanthite
Formula:	Ag₂S
Locality:	Republic Mines (Irma; Greely; Blackrock; Houston; Republic; Houston; Snowslide), New World District (Cooke District), Park Co., Montana, USA







Albite
Formula:	NaAlSi₃O₈
Locality:	Copper King Mine, Goose Lake, New World District (Cooke District), Park Co., Montana, USA







'Albite-Anorthite Series'
Locality:	Nicon Occurrence, Stillwater Complex, Park Co., Montana, USA








Almandine
Formula:	Fe²⁺₃Al₂(SiO₄)₃
Localities:	Crystal Cross Mt., Park Co., Montana, USA Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA







Andalusite
Formula:	Al₂(SiO₄)O
Localities:	Crevice Mtn., Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA McGinty claim, Park Co., Montana, USA







Ankerite
Formula:	Ca(Fe²⁺,Mg)(CO₃)₂
Locality:	Republic Mines (Irma; Greely; Blackrock; Houston; Republic; Houston; Snowslide), New World District (Cooke District), Park Co., Montana, USA







Arsenopyrite
Formula:	FeAsS
Localities:	Jardine Mine (Mineral Hill Mine), Jardine District (Sheepeater District; Bear Gulch District), Park Co., Montana, USA Jardine District (Sheepeater District; Bear Gulch District), Park Co., Montana, USA Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA







Baryte
Formula:	BaSO₄
Locality:	Horseshoe District, Park Co., Montana, USA







Biotite
Locality:	Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA








Bornite
Formula:	Cu₅FeS₄
Localities:	Copper King Mine, Goose Lake, New World District (Cooke District), Park Co., Montana, USA Grace Lode Prospect, New World District (Cooke District), Park Co., Montana, USA McLaren Mine (Estelle; New Year's Gift), New World District (Cooke District), Park Co., Montana, USA







Calcite
Formula:	CaCO₃
Localities:	Reported from at least 11 localities in this region.







Calcite var: Iceland Spar
Localities:	Calcite Operators Inc. Mine, Brackett Creek, Chadborn, Park Co., Montana, USA Deer Creek, Livingston, Park Co., Montana, USA








Chalcocite
Formula:	Cu₂S
Localities:	Copper King Mine, Goose Lake, New World District (Cooke District), Park Co., Montana, USA Glengarry Mine (Glengary; Como), New World District (Cooke District), Park Co., Montana, USA







Chalcopyrite
Formula:	CuFeS₂
Localities:	Reported from at least 17 localities in this region.







'Chlorite Group'
Localities:	Medona Mine, Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA








Copper
Formula:	Cu
Localities:	Homestake Mine (Henderson Tunnel; Excello; Gold Dust; Parkmont), New World District (Cooke District), Park Co., Montana, USA McLaren Mine (Estelle; New Year's Gift), New World District (Cooke District), Park Co., Montana, USA







Covellite
Formula:	CuS
Locality:	McLaren Mine (Estelle; New Year's Gift), New World District (Cooke District), Park Co., Montana, USA







Cummingtonite
Formula:	☐{Mg₂}{Mg₅}(Si₈O₂₂)(OH)₂
Localities:	Jardine District (Sheepeater District; Bear Gulch District), Park Co., Montana, USA Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA







Epidote
Formula:	{Ca₂}{Al₂Fe³⁺}(Si₂O₇)(SiO₄)O(OH)
Localities:	McLaren Mine (Estelle; New Year's Gift), New World District (Cooke District), Park Co., Montana, USA Glengarry Mine (Glengary; Como), New World District (Cooke District), Park Co., Montana, USA







Ferberite
Formula:	FeWO₄
Locality:	Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA







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







'Garnet'
Formula:	X₃Z₂(SiO₄)₃
Localities:	Medona Mine, Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA







Gersdorffite
Formula:	NiAsS
Locality:	Jardine Mine (Mineral Hill Mine), Jardine District (Sheepeater District; Bear Gulch District), Park Co., Montana, USA







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







Graphite
Formula:	C
Locality:	Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA







Grunerite
Formula:	☐{Fe²⁺₂}{Fe²⁺₅}(Si₈O₂₂)(OH)₂
Locality:	Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA







Hematite
Formula:	Fe₂O₃
Locality:	Horseshoe District, Park Co., Montana, USA







'Heulandite'
Locality:	Haymond School dike, Park Co., Montana, USA








'Hornblende'
Locality:	Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA








Ilmenite
Formula:	Fe²⁺TiO₃
Locality:	Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA







Laumontite
Formula:	CaAl₂Si₄O₁₂ · 4H₂O
Locality:	Haymond School dike, Park Co., Montana, USA







Limonite
Formula:	FeO(OH) · nH₂O
Localities:	Bull Elk Lode (Arrowhead Lode), New World District (Cooke District), Park Co., Montana, USA Copper King Mine, Goose Lake, New World District (Cooke District), Park Co., Montana, USA Viola Lode Occurrence, New World District (Cooke District), Park Co., Montana, USA Oregon Mountain Area Prospect, Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA Horseshoe District, Park Co., Montana, USA







Löllingite
Formula:	FeAs₂
Localities:	Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA Jardine Mine (Mineral Hill Mine), Jardine District (Sheepeater District; Bear Gulch District), Park Co., Montana, USA







Magnetite
Formula:	Fe²⁺Fe³⁺₂O₄
Localities:	Reported from at least 6 localities in this region.







Malachite
Formula:	Cu₂(CO₃)(OH)₂
Localities:	Grace Lode Prospect, New World District (Cooke District), Park Co., Montana, USA Polar Star Lode Prospect, New World District (Cooke District), Park Co., Montana, USA Silver Zone Lode Prospect, New World District (Cooke District), Park Co., Montana, USA Viola Lode Occurrence, New World District (Cooke District), Park Co., Montana, USA







Molybdenite
Formula:	MoS₂
Localities:	Reported from at least 6 localities in this region.







Molybdite
Formula:	MoO₃
Locality:	Emigrant Gulch Occurrence (Kearns), Emigrant Creek District (Chico District), Park Co., Montana, USA







Muscovite
Formula:	KAl₂(AlSi₃O₁₀)(OH)₂
Localities:	Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA McGinty claim, Park Co., Montana, USA







Natrolite
Formula:	Na₂Al₂Si₃O₁₀ · 2H₂O
Reference:	Jay Ellis Ransom,1974, Gems and Minerals of America
Localities:	Recorded from at least 1 other locality in this region.






Orthoclase
Formula:	KAlSi₃O₈
Locality:	Copper King Mine, Goose Lake, New World District (Cooke District), Park Co., Montana, USA







Pentlandite
Formula:	(Fe,Ni)₉S₈
Locality:	Nicon Occurrence, Stillwater Complex, Park Co., Montana, USA







'Petrified Wood'
Reference:	Jay Ellis Ransom,1974, Gems and Minerals of America








Polybasite
Formula:	[(Ag,Cu)₆(Sb,As)₂S₇][Ag₉CuS₄]
Locality:	Republic Mines (Irma; Greely; Blackrock; Houston; Republic; Houston; Snowslide), New World District (Cooke District), Park Co., Montana, USA







Proustite
Formula:	Ag₃AsS₃
Locality:	Republic Mines (Irma; Greely; Blackrock; Houston; Republic; Houston; Snowslide), New World District (Cooke District), Park Co., Montana, USA







Pyrite
Formula:	FeS₂
Localities:	Reported from at least 23 localities in this region.






Photo: © Chris Tucker. Pyrite from New World District, Park Co., Montana, USA
Pyrrhotite
Formula:	Fe_1-xS (x = 0 to 0.17)
Localities:	Jardine District (Sheepeater District; Bear Gulch District), Park Co., Montana, USA Jardine Mine (Mineral Hill Mine), Jardine District (Sheepeater District; Bear Gulch District), Park Co., Montana, USA Black Diamond Prospect (War Eagle Prospect), Cowles District (Haystack District; Boulder District; Independence District), Park Co., Montana, USA Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA Nicon Occurrence, Stillwater Complex, Park Co., Montana, USA







Quartz
Formula:	SiO₂
Localities:	Reported from at least 15 localities in this region.






Photo: © Chris Tucker. Quartz from New World District, Park Co., Montana, USA
Quartz var: Agate
Formula:	SiO₂
Reference:	Jay Ellis Ransom,1974, Gems and Minerals of America







Quartz var: Amethyst
Formula:	SiO₂
Locality:	Homestake Mine (Henderson Tunnel; Excello; Gold Dust; Parkmont), New World District (Cooke District), Park Co., Montana, USA







Quartz var: Chalcedony
Reference:	Jay Ellis Ransom,1974, Gems and Minerals of America








Quartz var: Jasper
Reference:	Jay Ellis Ransom,1974, Gems and Minerals of America








Quartz var: Moss Agate
Reference:	Jay Ellis Ransom,1974, Gems and Minerals of America








Quartz var: Smoky Quartz
Formula:	SiO₂
Locality:	Jardine Mine (Mineral Hill Mine), Jardine District (Sheepeater District; Bear Gulch District), Park Co., Montana, USA







Scheelite
Formula:	Ca(WO₄)
Localities:	Reported from at least 10 localities in this region.







Schorl
Formula:	Na(Fe²⁺₃)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Locality:	McGinty claim, Park Co., Montana, USA







Siderite
Formula:	FeCO₃
Localities:	Crevasse Mountain Mine (Jardine; Mineral Hill Mine; TVX Mineral Hill 0300670001; Jardine Mine; Jardine Jv), Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA Homestake Mine (Henderson Tunnel; Excello; Gold Dust; Parkmont), New World District (Cooke District), Park Co., Montana, USA New World Project (Daisy Mine; Little Daisy; Tredennick; Morning Star; Glengarry; Homestake Breccia Deposit; Homestake; Carlton; McLaren Gold Company; McLaren Deposit; Lula Mine), New World District (Cooke District), Park Co., Montana, USA







Sillimanite
Formula:	Al₂(SiO₄)O
Localities:	Crevice Mtn., Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA McGinty claim, Park Co., Montana, USA







Silver
Formula:	Ag
Locality:	Republic Mines (Irma; Greely; Blackrock; Houston; Republic; Houston; Snowslide), New World District (Cooke District), Park Co., Montana, USA







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







Staurolite
Formula:	(Fe²⁺,Mg,Zn)_1.5-2Al₉(SiO₄)₄O₆(OH,O)₂
Locality:	Crystal Cross Mt., Park Co., Montana, USA







'Stilbite'
Localities:	Haymond School dike, Park Co., Montana, USA Wade Calcite Deposit (Wade Mine; Gibbons Ranch), Park Co., Montana, USA








'Wad'
Locality:	Oregon Mountain Area Prospect, Crevasse District (Crevice District; Jardine District), Park Co., Montana, USA

62 entries listed. 45 valid minerals.

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