Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Bay Horse District, Custer Co., Idaho, USA

Oldest recorded age at locality: 89.7
Youngest recorded age at locality: 40

mindat Locality ID: 3735
mindat URL: http://www.mindat.org/loc-3735.html

Tectonic Settings:

Total number of sublocalities beneath "Bay Horse District, Custer Co., Idaho, USA": 104
Total number of bottom-level sublocalities: 95

Number of Child Localities: 65
Child Localities:
Barton Mine
Beardsley Mine
Bluebird Prospect (Unnamed Prospect)
Bruno Mine (Cinnabar)
Buckskin Claims
Bull Of The Woods Mine
Cave Mine
Challis
Challis View Mine (Skyline No. 1)
Chalspar No. 1 Mine (Past Up Vein; West Vein)
Chalspar No. 2 Prospect
Chalspar No. 3 Occurrence
Chalspar No. 5 Prospect
Clayton View Mine (Levzinger Property)
Democrat (Vermont; Grizzly; Zodiac)
Dryden Mine (Williams - Dryden Group)
Excelsior Mine
Flintstone Group
Fluorspar Group (Fluorspar No. 2; Chalspar No. 2)
Fluorspar Nos. 2; 4; 5; 6; 7; 11; 12; 13 Occurrence
Forest Rose Mine
Garden Creek Mine (Garden Creek Silver)
Gold - Silver Prospect (MRDS - 10093558)
Henie Hinie Prospect (Nameless)
Holman Creek
Hood Prospect
Keystone Mountain
Kinnikinic Creek
Kuna Prospect
Last Chance Mine
Mammoth Prospect (Sheridan)
Maude And Vermont Lodes Prospect (Vermont; Maude)
McGregor Group
Mill Creek Bar Placer
Muleshoe Prospect
New Hope Prospect (New Hope Lode Claims)
Pacific 9a Mine
Pastup Occurrence
Quartzite Occurrence (MRDS - 10168395)
Rain - In - The - Face Claim
Ramshorn Mountain
Redbird Mine
River View Mine
Salmon River
Saturday Mountain Mine (Saturday & Mollie D.)
Silver Bell Mine (New Silver Bell)
Silver Rule Mine
Skyline No. 8 Mine (Dougherty Group; Daugherty Group)
Slate Creek
South Butte Mine
Sulphide Prospect
Sure Shot Prospect
Thompson Creek Mine Moly & Antimony (Thompson Creek Molybdenum Mine)
Thompson Creek Silver Prospect
Troxpar Prospect
Turtle Mine (No Name Mine; Turtleback)
Twin Apex Mine
Union - Companion Prospect
Unnamed Fluorine-Fluorite Prospect (MRDS - 10119608)
Utah Boy Claim
Virginia Dare Prospect
West Creek Prospect
Westpar No. 1 Occurrence
Westpar Prospect
Williams; Rohlds; And Ernst Mine (Good Friend Group; Ernst; Rohlds)

Latitude: 44°22'3"N
Longitude: 114°23'27"W
Decimal Degree (lat, lon): 44.3675,-114.39083333333

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Acanthite	Adelite	Allophane	Alunite	Amorphous	Analcime	Apatite	Aragonite	Arsenopyrite	Baryte
Brochantite	Calcite	Caledonite	Chalcopyrite	Clay	Copper	Corundum	Cubanite	Digenite	Feldspar
Fluorite	Garnet	Gypsum	Heulandite	Linarite	Malachite	Mica	Minium	Molybdenite	Mordenite
Natrolite	Nickeline	None	Not in a structural group	Phenakite	Polybasite	Pyrite	Pyrochlore	Pyroxene	Quartz
Rocksalt	Scheelite	Smectite-vermiculite	Sphalerite	Spinel	Stilbite	Tetrahedrite	Titanite	Tourmaline	Vesuvianite
Wurtzite	Zircon

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Ag Al As B Ba C Ca Cl Cu F Fe H K Li Mg Mo Na O Pb S Sb Si Sn Ti W Zn Zr

Elements from minerals reported directly at this locality: O Sn

Structural Groups for minerals in this locality:
Acanthite Adelite Allophane Alunite Amorphous Analcime Apatite Aragonite Arsenopyrite Baryte
Brochantite Calcite Caledonite Chalcopyrite Clay Copper Corundum Cubanite Digenite Feldspar
Fluorite Garnet Gypsum Heulandite Linarite Malachite Mica Minium Molybdenite Mordenite
Natrolite Nickeline None Not in a structural group Phenakite Polybasite Pyrite Pyrochlore Pyroxene Quartz
Rocksalt Scheelite Smectite-vermiculite Sphalerite Spinel Stilbite Tetrahedrite Titanite Tourmaline Vesuvianite
Wurtzite Zircon

69 IMA Minerals at location:

Acanthite ()*	Albite ()*	Analcime ()*	Andradite ()*	Anglesite ()*
Aragonite ()*	Arsenopyrite ()*	Augite ()*	Aurichalcite ()*	Azurite ()*
Baryte ()*	Bayldonite ()*	Bindheimite ()*	Brochantite ()*	Calcite ()*
Caledonite ()*	Cerussite ()*	Chalcopyrite ()*	Chlorargyrite ()*	Chrysocolla ()*
Conichalcite ()*	Cubanite ()*	Cuprite ()*	Digenite ()*	Dolomite ()*
Duftite ()*	Elbaite ()*	Fluorite ()*	Galena ()*	Grossular ()*
Gypsum ()*	Hematite ()*	Hemimorphite ()*	Heulandite-Ca ()*	Heulandite-Na ()*
Ilmenite ()*	Jarosite ()*	Laumontite ()*	Linarite ()*	Magnetite ()*
Malachite ()*	Mesolite ()*	Microcline ()*	Mimetite ()*	Minium ()*
Molybdenite ()*	Montmorillonite ()*	Mordenite ()*	Muscovite ()*	Opal ()*
Orthoclase ()*	Plumbojarosite ()*	Polybasite ()*	Powellite ()*	Pyrite ()*
Pyrrhotite ()*	Quartz ()*	Romarchite ()*	Scheelite ()*	Siderite ()*
Silver ()*	Smithsonite ()*	Sphalerite ()*	Stilbite-Ca ()*	Tetrahedrite-(Zn) ()*
Titanite ()*	Vesuvianite ()*	Willemite ()*	Zircon ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Acanthite ()*	Acanthite	Ag₂S			1	206811	2793
Albite ()*	Feldspar	Na(AlSi₃O₈)	55	40	1	206759	8803
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	55	40	4	206749,206752,206757,206760	1627
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	55	40	1	206759	1534
Anglesite ()*	Baryte	Pb(SO₄)	55	40	4	206755,206799,206814,206826	2734
Aragonite ()*	Aragonite	Ca(CO₃)	55	40	2	206743,206753	3250
Arsenopyrite ()*	Arsenopyrite	FeAsS			2	206811,206840	9052
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	55	40	1	206757	2060
Aurichalcite ()*	None	(Zn,Cu)₅(CO₃)₂(OH)₆			1	206817	919
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂			5	206747,206799,206811,206812,206836	5509
Baryte ()*	Baryte	Ba(SO₄)	55	40	3	206758,206785,206795	11547
Bayldonite ()*	None	Cu₃PbO(AsO₃OH)₂(OH)₂			1	206811	172
Bindheimite ()*	Pyrochlore	Pb₂Sb⁵⁺₂O₇	50	48	6	206748,206799,206801,206811,206812,206815	450
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆	55	40	1	206755	1633
Calcite ()*	Calcite	Ca(CO₃)	55	40	12	206743,206749,206752,206757,206758,206759,206760,206768,206782,206811,206814,206826	27770
Caledonite ()*	Caledonite	Cu₂Pb₅(SO₄)₃(CO₃)(OH)₆	55	40	1	206755	359
Cerussite ()*	Aragonite	Pb(CO₃)	55	40	5	206755,206801,206811,206814,206815	4979
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	55	40	13	206746,206747,206755,206785,206788,206791,206804,206811,206817,206819,206826,206836,206840	27198
Chlorargyrite ()*	Rocksalt	AgCl			2	206798,206811	1382
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	55	40	4	206743,206755,206782,206811	3531
Conichalcite ()*	Adelite	CaCu(AsO₄)(OH)			1	206782	363
Cubanite ()*	Cubanite Wurtzite	CuFe₂S₃			1	206826	802
Cuprite ()*	Not in a structural group	Cu₂O			2	206811,206812	2970
Digenite ()*	Digenite	Cu_1.8S			1	206826	1027
Dolomite ()*	None	CaMg(CO₃)₂	50	48	34	206742,206748,206762,206763,206764,206765,206768,206769,206772,206773,206776,206781,206784,206785,206788,206790,206794,206795,206796,206798,206800,206802,206806,206807,206809,206814,206815,206818,206820,206830,206835,206836,206843,206844	9895
Duftite ()*	Adelite	PbCu(AsO₄)(OH)			1	206782	220
Elbaite ()*	Tourmaline	Na(Al_1.5Li_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	55	40	1	206759	520
Fluorite ()*	Fluorite	CaF₂	55	40	18	206749,206753,206762,206763,206764,206765,206772,206774,206782,206784,206785,206801,206807,206811,206814,206835,206843,206844	9617
Galena ()*	Rocksalt	PbS	55	40	23	206742,206755,206766,206768,206785,206788,206789,206792,206793,206794,206795,206801,206804,206811,206815,206818,206820,206826,206830,206831,206836,206838,206840	24243
Grossular ()*	Garnet	Ca₃Al₂(SiO₄)₃	55	40	1	206759	1544
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	55	40	1	206759	6890
Hematite ()*	Corundum	Fe₂O₃			1	206803	14640
Hemimorphite ()*	Not in a structural group	Zn₄(Si₂O₇)(OH)₂·H₂O	50	48	5	206743,206801,206811,206814,206815	1689
Heulandite-Ca ()*	Heulandite	(Ca,Na,K)₅(Si₂₇Al₉)O₇₂·26H₂O	55	40	2	206749,206757	246
Heulandite-Na ()*	Heulandite	(Na,Ca,K)₆(Si,Al)₃₆O₇₂·22H₂O	55	40	3	206754,206756,206760	18
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			1	206803	5433
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	55	40	1	206759	2228
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	55	40	1	206757	1271
Linarite ()*	Linarite	CuPb(SO₄)(OH)₂	55	40	3	206755,206801,206811	987
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			1	206803	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	55	40	7	206743,206755,206799,206811,206815,206817,206836	12537
Mesolite ()*	Natrolite	Na₂Ca₂(Si₉Al₆)O₃₀·8H₂O	55	40	1	206749	425
Microcline ()*	Feldspar	K(AlSi₃O₈)	55	40	1	206759	4924
Mimetite ()*	Apatite	Pb₅(AsO₄)₃Cl			1	206811	1107
Minium ()*	Minium	Pb²⁺₂Pb⁴⁺O₄			1	206811	247
Molybdenite ()*	Molybdenite	MoS₂	55	40	3	206759,206809,206811	5800
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	55	40	1	206759	1508
Mordenite ()*	Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆·28H₂O	55	40	3	206749,206757,206760	405
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	55	40	1	206759	17380
Opal ()*	Amorphous	SiO₂·nH₂O	55	40	2	206757,206758	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	55	40	1	206759	2349
Plumbojarosite ()*	Alunite	Pb_0.5Fe³⁺₃(SO₄)₂(OH)₆			1	206782	477
Polybasite ()*	Polybasite	[Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇]			1	206788	716
Powellite ()*	Scheelite	Ca(MoO₄)	55	40	2	206759,206811	494
Pyrite ()*	Pyrite	FeS₂	55	40	12	206759,206768,206770,206790,206798,206799,206811,206814,206819,206820,206826,206830	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	55	40	1	206759	9056
Quartz ()*	Quartz	SiO₂	55	40	33	206743,206746,206749,206752,206753,206755,206757,206758,206759,206760,206763,206766,206768,206770,206782,206785,206788,206790,206791,206793,206794,206798,206799,206801,206804,206809,206811,206819,206820,206826,206835,206836,206838	61156
Romarchite ()*	None	SnO	89.7	40	0		13
Scheelite ()*	Scheelite	Ca(WO₄)	55	40	3	206746,206759,206770	4894
Siderite ()*	Calcite	Fe(CO₃)	50	48	9	206746,206768,206788,206789,206790,206804,206811,206819,206840	6417
Silver ()*	Copper	Ag	50	48	3	206811,206812,206815	5186
Smithsonite ()*	Calcite	Zn(CO₃)	55	40	5	206755,206798,206811,206814,206815	2473
Sphalerite ()*	Sphalerite	ZnS	50	48	7	206746,206788,206792,206811,206815,206820,206826	21482
Stilbite-Ca ()*	Stilbite	NaCa₄(Si₂₇Al₉)O₇₂·28H₂O	55	40	1	206757	268
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃			13	206747,206788,206790,206795,206799,206801,206811,206812,206819,206820,206826,206836,206840	5317
Titanite ()*	Titanite	CaTi(SiO₄)O			1	206803	4899
Vesuvianite ()*	Vesuvianite	(Ca,Na)₁₉(Al,Mg,Fe)₁₃(SiO₄)₁₀(Si₂O₇)₄(OH,F,O)₁₀			1	206746	1395
Willemite ()*	Phenakite	Zn₂SiO₄			1	206782	303
Zircon ()*	Zircon	Zr(SiO₄)			1	206803	5251

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Giersdorf_00000283	Subduction-related Volcanic zone in Central Idaho

15 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Num	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID	Age Notes
Giersdorf_00000283	55	40	55-40	K-Ar		16147	Challis, Bay Horse District, Custer Co., Idaho, USA	Challis Volcanics	Moye et al. (1988)	GGCSI27_87	Age of the Challis Volcanic field
NAVDAT-38686	50	48	49±1		38686	137059	Dryden Mine (Williams - Dryden Group), Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT
NAVDAT-38687	50	48	49±1		38687	137059	Dryden Mine (Williams - Dryden Group), Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT
NAVDAT-38693	50	48	49±1		38693	140227	River View Mine, Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT
NAVDAT-14132	89.7	83.5	86.6±3.1		14132	141083	Thompson Creek Mine Moly & Antimony (Thompson Creek Molybdenum Mine), Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT
NAVDAT-14133	89.7	83.5	86.6±3.1		14133	141083	Thompson Creek Mine Moly & Antimony (Thompson Creek Molybdenum Mine), Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT
NAVDAT-38652	50	48	49±1		38652	141370	Unnamed Fluorine-Fluorite Prospect (MRDS - 10119608), Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT
NAVDAT-38653	50	48	49±1		38653	141370	Unnamed Fluorine-Fluorite Prospect (MRDS - 10119608), Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT
NAVDAT-38677	50	48	49±1		38677	141370	Unnamed Fluorine-Fluorite Prospect (MRDS - 10119608), Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT
NAVDAT-38680	50	48	49±1		38680	141370	Unnamed Fluorine-Fluorite Prospect (MRDS - 10119608), Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT
NAVDAT-38681	50	48	49±1		38681	141370	Unnamed Fluorine-Fluorite Prospect (MRDS - 10119608), Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT
NAVDAT-38682	50	48	49±1		38682	141370	Unnamed Fluorine-Fluorite Prospect (MRDS - 10119608), Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT
NAVDAT-38683	50	48	49±1		38683	141370	Unnamed Fluorine-Fluorite Prospect (MRDS - 10119608), Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT
NAVDAT-38684	50	48	49±1		38684	141370	Unnamed Fluorine-Fluorite Prospect (MRDS - 10119608), Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT
NAVDAT-38685	50	48	49±1		38685	141370	Unnamed Fluorine-Fluorite Prospect (MRDS - 10119608), Bay Horse District, Custer Co., Idaho, USA		NAVDAT	NAVDAT

Sample	Source Locality	Reference URL
R040140	Challis, Bay Horse District, Custer Co., Idaho, USA	https://rruff.info/R040140
R050097	Rat's Nest Claim (Rat's Nest Mine), Challis, Bay Horse District, Custer Co., Idaho, USA	https://rruff.info/R050097
R050647	Rat's Nest Claim (Rat's Nest Mine), Challis, Bay Horse District, Custer Co., Idaho, USA	https://rruff.info/R050647

All locality data graciously provided by mindat.org

All age data...