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:
Custer Co., Colorado, USA

Oldest recorded age at locality: 1693.8
Youngest recorded age at locality: 25

mindat Locality ID: 23647
mindat URL: http://www.mindat.org/loc-23647.html

Tectonic Settings:

Total number of sublocalities beneath "Custer Co., Colorado, USA": 318
Total number of bottom-level sublocalities: 298

Number of Child Localities: 35
Child Localities:
Cisneros Trail
Crestone Needles Area
Crestone Peak Area
Gem Park Area
Gem Park Complex
Hardscrabble District
Horn Peak Area
Lake Creek District
Lawson Mine
Mount Tyndall Quadrangle
Oak Creek District (Ilse District)
Ophir Creek District
Rosita District
Rosita Pit
Sangre De Cristo
Sangre De Cristo Mine (Bobtail And Gregory Lode)
Silver Cliff District
Spaulding District
Trinchera Mesa
Unidentified Mine (MRDS - 10013031)
Unidentified Occurrence (MRDS - 10013039)
Unknown Barium-Barite Occurrence (MRDS - 10016573)
Unknown Calcium - Sodium - Potassium Occurrence (MRDS - 10016864)
Unknown Clay - Bentonite Occurrence (MRDS - 10016863)
Unknown Clay - Fire (Refractory; MRDS - 10016866)
Unknown Clay - Fire (Refractory) Occurrence (MRDS - 10016579)
Unknown Clay Occurrence (MRDS - 10016578)
Unknown Iron (MRDS - 10239836)
Unknown Molybdenum Occurrence (MRDS - 10016576)
Unknown REE - Thorium (MRDS - 10016555)
Unknown Silver Occurrence (MRDS - 10016568)
Unknown Thorium (MRDS - 10016574)
Unknown Thorium Occurrence (MRDS - 10016570)
Unnamed Hot Spring
Wet Mountains Area

Latitude: 38°8'18"N
Longitude: 105°22'44"W
Decimal Degree (lat, lon): 38.138333333333,-105.37888888889

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	Amphibole	Analcime	Apatite	Aragonite	Arsenopyrite
Baryte	Beryl	Brochantite	Brucite	Calcite	Chalcopyrite	Chloritoid	Clay	Columbite	Copper
Coronadite	Corrensite	Corundum	Covellite	Diaspore	Digenite	Feldspar	Fluorite	Garnet	Humite
Jalpaite	Kaolinite	Malachite	Marcasite	Melonite	Meneghinite	Mica	Molybdenite	Mordenite	Nickeline
None	Not in a structural group	Olivine	Phosphosiderite	Polybasite	Pyrite	Pyrophyllite	Pyroxene	Quartz	Rhabdophane
Rocksalt	Rutile	Sapphirine	Scheelite	Smectite-vermiculite	Sphalerite	Spinel	Stannite	Stibnite	Sulphur
Talc	Tetrahedrite	Topaz	Tridymite	Vivianite	Volborthite	Wollastonite	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 Au Ba Be Bi Br C Ca Ce Cl Cu F Fe H I K Mg Mn Mo Na Nb Ni O P Pb S Sb Si Sr Ta Te Th Ti U V Y Zn Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Acanthite Adelite Allophane Alunite Amorphous Amphibole Analcime Apatite Aragonite Arsenopyrite
Baryte Beryl Brochantite Brucite Calcite Chalcopyrite Chloritoid Clay Columbite Copper
Coronadite Corrensite Corundum Covellite Diaspore Digenite Feldspar Fluorite Garnet Humite
Jalpaite Kaolinite Malachite Marcasite Melonite Meneghinite Mica Molybdenite Mordenite Nickeline
None Not in a structural group Olivine Phosphosiderite Polybasite Pyrite Pyrophyllite Pyroxene Quartz Rhabdophane
Rocksalt Rutile Sapphirine Scheelite Smectite-vermiculite Sphalerite Spinel Stannite Stibnite Sulphur
Talc Tetrahedrite Topaz Tridymite Vivianite Volborthite Wollastonite Wurtzite Zircon

129 IMA Minerals at location:

Acanthite ()*	Actinolite ()*	Aegirine ()*	Aikinite ()*	Albite ()*
Alunite ()*	Analcime ()*	Anglesite ()*	Ankerite ()*	Annabergite ()*
Anthophyllite ()*	Arfvedsonite ()*	Arsenopyrite ()*	Azurite ()*	Baryte ()*
Beaverite-(Cu) ()*	Bertrandite ()*	Birnessite ()*	Bornite ()*	Brochantite ()*
Brockite ()*	Bromargyrite ()*	Brucite ()*	Calciosamarskite ()*	Calcite ()*
Carnotite ()*	Cerussite ()*	Chalcophanite ()*	Chalcopyrite ()*	Chlorargyrite ()*
Chloritoid ()*	Chrysocolla ()*	Clinohumite ()*	Coffinite ()*	Copper ()*
Cordierite ()*	Corrensite ()*	Corundum ()*	Covellite ()*	Cryptomelane ()*
Cuprite ()*	Cuprobismutite ()*	Diaspore ()*	Dickite ()*	Digenite ()*
Diopside ()*	Dolomite ()*	Famatinite ()*	Ferro-hornblende ()*	Fersmanite ()*
Fluorapatite ()*	Fluorite ()*	Forsterite ()*	Gahnite ()*	Galena ()*
Goethite ()*	Gold ()*	Hematite ()*	Hemimorphite ()*	Ilmenite ()*
Iodargyrite ()*	Jalpaite ()*	Jamesonite ()*	Jarosite ()*	Kaolinite ()*
Magnetite ()*	Malachite ()*	Marcasite ()*	Matildite ()*	Microcline ()*
Molybdenite ()*	Molybdite ()*	Montmorillonite ()*	Mordenite ()*	Muscovite ()*
Natroalunite ()*	Natrojarosite ()*	Nickeline ()*	Opal ()*	Osarizawaite ()*
Petzite ()*	Phlogopite ()*	Phosgenite ()*	Phosphosiderite ()*	Plumbojarosite ()*
Polybasite ()*	Powellite ()*	Pyrargyrite ()*	Pyrite ()*	Pyrophyllite ()*
Pyrrhotite ()*	Quartz ()*	Rhodochrosite ()*	Rickardite ()*	Riebeckite ()*
Rutile ()*	Sanidine ()*	Sapphirine ()*	Siderite ()*	Sillimanite ()*
Silver ()*	Smithsonite ()*	Spessartine ()*	Sphalerite ()*	Spinel ()*
Stephanite ()*	Stibnite ()*	Strengite ()*	Stromeyerite ()*	Sulphur ()*
Sylvanite ()*	Talc ()*	Tangeite ()*	Tennantite-(Fe) ()*	Tetrahedrite-(Zn) ()*
Thorite ()*	Todorokite ()*	Topaz ()*	Tremolite ()*	Tridymite ()*
Tyuyamunite ()*	Uranophane-α ()*	Vermiculite ()*	Volborthite ()*	Wollastonite ()*
Wulfenite ()*	Xenotime-(Y) ()*	Zircon ()*	Zunyite ()*

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			8	187232,187236,187270,187273,187303,187309,187320,187325	2793
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂			2	187216,187217	3419
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆			1	187255	1022
Aikinite ()*	Meneghinite	CuPbBiS₃			1	187273	315
Albite ()*	Feldspar	Na(AlSi₃O₈)	1693.8	1668.9	3	187400,187420,187423	8803
Alunite ()*	None	KAl₃(SO₄)₂(OH)₆			6	187132,187234,187256,187267,187276,187277	966
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O			1	187159	1627
Anglesite ()*	Baryte	Pb(SO₄)			1	187305	2734
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂			3	187217,187296,187423	3092
Annabergite ()*	Vivianite	Ni₃(AsO₄)₂·8H₂O			2	187290,187327	445
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂			3	187130,187137,187146	718
Arfvedsonite ()*	Amphibole	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂	1693.8	1668.9	1	187400	295
Arsenopyrite ()*	Arsenopyrite	FeAsS			2	187137,187246	9052
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂			4	187207,187230,187257,187284	5509
Baryte ()*	Baryte	Ba(SO₄)	1693.8	551	76	187128,187134,187173,187176,187180,187185,187194,187213,187215,187217,187224,187226,187232,187234,187236,187242,187244,187245,187246,187253,187265,187270,187273,187279,187280,187281,187303,187305,187309,187310,187313,187318,187321,187322,187330,187349,187358,187370,187371,187373,187374,187375,187376,187377,187378,187380,187382,187384,187388,187390,187391,187392,187393,187395,187397,187401,187402,187403,187404,187405,187406,187407,187408,187409,187410,187411,187412,187413,187415,187416,187420,187421,187424,187428,187430,187437	11547
Beaverite-(Cu) ()*	Alunite	Pb(Fe³⁺₂Cu)(SO₄)₂(OH)₆	40	30	1	187292	132
Bertrandite ()*	Not in a structural group	Be₄Si₂O₇(OH)₂			1	187428	606
Birnessite ()*	None	(Na,Ca,K)_0.6(Mn⁴⁺,Mn³⁺)₂O₄·1.5H₂O			2	187292,187317	178
Bornite ()*	None	Cu₅FeS₄			3	187134,187137,187328	5516
Brochantite ()*	Brochantite	Cu₄(SO₄)(OH)₆			1	187217	1633
Brockite ()*	Rhabdophane	(Ca,Th,Ce)(PO₄)·H₂O			4	187395,187413,187420,187423	48
Bromargyrite ()*	Rocksalt	AgBr			6	187294,187309,187321,187325,187326,187330	227
Brucite ()*	Brucite	Mg(OH)₂			2	187130,187137	462
Calciosamarskite ()*	Columbite	(Ca,Fe,Y)(Nb,Ta,Ti)O₄			1	187403	11
Calcite ()*	Calcite	Ca(CO₃)			33	187128,187134,187163,187165,187173,187194,187213,187215,187217,187226,187232,187238,187241,187242,187244,187245,187265,187273,187279,187280,187281,187296,187303,187370,187389,187390,187393,187401,187402,187420,187421,187423,187424	27770
Carnotite ()*	None	K₂(UO₂)₂(VO₄)₂·3H₂O			2	187151,187385	1184
Cerussite ()*	Aragonite	Pb(CO₃)			5	187163,187246,187305,187321,187377	4979
Chalcophanite ()*	None	ZnMn⁴⁺₃O₇·3H₂O			3	187321,187326,187330	197
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			46	187130,187137,187146,187155,187156,187194,187195,187213,187215,187226,187232,187238,187241,187242,187244,187245,187246,187265,187273,187279,187280,187281,187290,187291,187301,187303,187305,187307,187308,187309,187310,187313,187318,187323,187325,187374,187375,187378,187379,187390,187393,187402,187405,187412,187413,187423	27198
Chlorargyrite ()*	Rocksalt	AgCl			11	187167,187179,187199,187295,187309,187312,187321,187323,187325,187330,187349	1382
Chloritoid ()*	Chloritoid	Fe²⁺Al₂O(SiO₄)(OH)₂			1	187289	376
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O			1	187156	3531
Clinohumite ()*	Humite	Mg₉(SiO₄)₄F₂			1	187137	236
Coffinite ()*	Zircon	U(SiO₄)·nH₂O			1	187151	566
Copper ()*	Copper	Cu			1	187287	3846
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈			3	187130,187137,187146	1008
Corrensite ()*	Corrensite Clay	(Ca,Na,K)_1-x(Mg,Fe,Al)₉(Si,Al)₈O₂₀(OH)₁₀·nH₂O			1	187216	49
Corundum ()*	Corundum	Al₂O₃			2	187130,187137	1797
Covellite ()*	Covellite	CuS			4	187146,187173,187215,187244	4165
Cryptomelane ()*	Coronadite	K(Mn⁴⁺₇Mn³⁺)O₁₆			3	187321,187326,187330	599
Cuprite ()*	Not in a structural group	Cu₂O			1	187230	2970
Cuprobismutite ()*	None	Cu₈AgBi₁₃S₂₄			1	187273	43
Diaspore ()*	Diaspore	AlO(OH)			3	187234,187256,187267	481
Dickite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			4	187171,187234,187321,187330	651
Digenite ()*	Digenite	Cu_1.8S			2	187176,187180	1027
Diopside ()*	Pyroxene	CaMgSi₂O₆			1	187217	4135
Dolomite ()*	None	CaMg(CO₃)₂	551	551	6	187128,187238,187241,187296,187391,187423	9895
Famatinite ()*	Stannite Sphalerite	Cu₃SbS₄			2	187176,187180	163
Ferro-hornblende ()*	Amphibole	Ca₂(Fe²⁺₄Al)(Si₇Al)O₂₂(OH)₂			1	187255	271
Fersmanite ()*	None	Ca₄(Na,Ca)₄(Ti,Nb)₄(Si₂O₇)₂O₈F₃			1	187421	11
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F			1	187420	2740
Fluorite ()*	Fluorite	CaF₂	1693.8	1668.9	23	187224,187309,187310,187313,187318,187321,187330,187377,187380,187382,187384,187389,187393,187395,187401,187403,187404,187406,187408,187410,187411,187415,187430	9617
Forsterite ()*	Olivine	Mg₂(SiO₄)			1	187137	1188
Gahnite ()*	Spinel	ZnAl₂O₄			3	187130,187137,187146	445
Galena ()*	Rocksalt	PbS	1693.8	30	80	187130,187134,187137,187146,187154,187185,187194,187208,187213,187215,187226,187232,187235,187237,187241,187242,187244,187245,187246,187247,187264,187265,187272,187273,187279,187280,187281,187296,187299,187300,187301,187303,187304,187305,187306,187307,187308,187309,187310,187313,187314,187318,187321,187323,187324,187325,187330,187331,187333,187334,187352,187373,187374,187375,187377,187378,187380,187382,187383,187384,187389,187390,187393,187395,187397,187401,187402,187403,187404,187406,187407,187408,187410,187411,187412,187413,187415,187423,187424,187430	24243
Goethite ()*	Diaspore	FeO(OH)			7	187128,187217,187234,187321,187330,187377,187401	7437
Gold ()*	Copper	Au			13	187131,187154,187165,187167,187195,187208,187241,187296,187303,187310,187379,187401,187423	30554
Hematite ()*	Corundum	Fe₂O₃			20	187128,187134,187160,187217,187350,187373,187374,187375,187377,187384,187389,187390,187393,187397,187401,187407,187415,187420,187423,187428	14640
Hemimorphite ()*	Not in a structural group	Zn₄(Si₂O₇)(OH)₂·H₂O			1	187423	1689
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			3	187124,187128,187146	5433
Iodargyrite ()*	Wurtzite	AgI			1	187294	180
Jalpaite ()*	Jalpaite	Ag₃CuS₂			1	187303	116
Jamesonite ()*	None	Pb₄FeSb₆S₁₄			3	187238,187241,187423	784
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆			13	187176,187179,187180,187217,187224,187234,187294,187305,187314,187321,187325,187330,187331	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			9	187132,187176,187180,187190,187234,187255,187272,187295,187423	5591
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			11	187128,187137,187146,187217,187305,187306,187310,187314,187331,187393,187428	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			6	187173,187215,187244,187245,187313,187318	12537
Marcasite ()*	Marcasite	FeS₂			1	187137	5674
Matildite ()*	None	AgBiS₂			2	187273,187324	252
Microcline ()*	Feldspar	K(AlSi₃O₈)			3	187377,187400,187401	4924
Molybdenite ()*	Molybdenite	MoS₂			5	187155,187157,187217,187365,187436	5800
Molybdite ()*	None	MoO₃			1	187155	140
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O			1	187317	1508
Mordenite ()*	Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆·28H₂O			1	187253	405
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			7	187171,187234,187289,187305,187314,187320,187331	17380
Natroalunite ()*	Alunite	NaAl₃(SO₄)₂(OH)₆			2	187190,187224	128
Natrojarosite ()*	Alunite	NaFe³⁺₃(SO₄)₂(OH)₆			3	187171,187179,187234	254
Nickeline ()*	Nickeline	NiAs			1	187328	633
Opal ()*	Amorphous	SiO₂·nH₂O			1	187255	2994
Osarizawaite ()*	Alunite	Pb(Al₂Cu²⁺)(SO₄)₂(OH)₆	40	30	1	187292	64
Petzite ()*	None	Ag₃AuTe₂			1	187423	409
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂			2	187128,187217	2273
Phosgenite ()*	None	Pb₂(CO₃)Cl₂			1	187163	142
Phosphosiderite ()*	Phosphosiderite	Fe³⁺(PO₄)·2H₂O			1	187234	182
Plumbojarosite ()*	Alunite	Pb_0.5Fe³⁺₃(SO₄)₂(OH)₆			4	187179,187292,187305,187321	477
Polybasite ()*	Polybasite	[Ag₉CuS₄][(Ag,Cu)₆(Sb,As)₂S₇]			1	187303	716
Powellite ()*	Scheelite	Ca(MoO₄)			1	187217	494
Pyrargyrite ()*	None	Ag₃SbS₃			1	187303	1425
Pyrite ()*	Pyrite	FeS₂	1693.8	1668.9	63	187130,187137,187146,187155,187176,187180,187194,187195,187213,187215,187217,187226,187232,187236,187238,187241,187242,187244,187245,187246,187265,187270,187273,187279,187280,187281,187290,187296,187299,187303,187305,187306,187309,187310,187313,187314,187318,187324,187325,187328,187331,187350,187373,187375,187377,187380,187382,187384,187393,187395,187401,187402,187403,187404,187406,187408,187410,187411,187413,187415,187420,187423,187430	39462
Pyrophyllite ()*	Clay Pyrophyllite	Al₂Si₄O₁₀(OH)₂			2	187171,187234	771
Pyrrhotite ()*	Nickeline	Fe₇S₈			3	187130,187137,187146	9056
Quartz ()*	Quartz	SiO₂	1693.8	1668.9	60	187128,187132,187134,187155,187163,187176,187180,187190,187199,187217,187234,187238,187241,187247,187253,187255,187296,187303,187305,187310,187313,187314,187318,187320,187321,187330,187331,187371,187373,187374,187375,187377,187378,187380,187382,187384,187387,187392,187393,187395,187397,187401,187402,187403,187404,187405,187406,187407,187408,187410,187411,187413,187415,187420,187421,187423,187424,187427,187428,187430	61156
Rhodochrosite ()*	Calcite	Mn(CO₃)			1	187412	1711
Rickardite ()*	None	Cu_3-xTe₂			1	187228	52
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂			1	187255	375
Rutile ()*	Rutile	TiO₂			8	187128,187137,187146,187171,187224,187377,187393,187401	5614
Sanidine ()*	Feldspar	K(AlSi₃O₈)	40	30	2	187224,187292	598
Sapphirine ()*	Sapphirine	Mg₄(Mg₃Al₉)O₄[Si₃Al₉O₃₆]			4	187121,187130,187137,187146	129
Siderite ()*	Calcite	Fe(CO₃)			12	187134,187217,187246,187296,187378,187384,187387,187393,187401,187402,187407,187423	6417
Sillimanite ()*	Not in a structural group	Al₂SiO₅			1	187137	1516
Silver ()*	Copper	Ag	40	30	21	187131,187154,187165,187194,187213,187215,187226,187232,187242,187244,187245,187265,187279,187280,187281,187304,187333,187334,187367,187374,187375	5186
Smithsonite ()*	Calcite	Zn(CO₃)			5	187238,187241,187296,187301,187423	2473
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃			1	187255	1214
Sphalerite ()*	Sphalerite	ZnS	40	30	30	187130,187137,187146,187165,187217,187232,187235,187237,187238,187241,187246,187247,187264,187272,187296,187300,187303,187304,187307,187310,187313,187318,187323,187324,187334,187352,187383,187396,187412,187423	21482
Spinel ()*	Spinel	MgAl₂O₄			6	187121,187130,187133,187137,187146,187171	1934
Stephanite ()*	None	Ag₅SbS₄			12	187194,187213,187215,187226,187232,187242,187244,187245,187265,187279,187280,187281	586
Stibnite ()*	Stibnite	Sb₂S₃			4	187238,187241,187306,187423	3418
Strengite ()*	None	Fe³⁺(PO₄)·2H₂O			2	187171,187234	263
Stromeyerite ()*	None	CuAgS			1	187303	332
Sulphur ()*	Sulphur	S			3	187176,187180,187370	2045
Sylvanite ()*	Melonite	AgAuTe₄			2	187228,187423	337
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			2	187321,187330	3337
Tangeite ()*	Adelite	CaCu(VO₄)(OH)	40	30	1	187292	60
Tennantite-(Fe) ()*	Tetrahedrite	Cu₆(Cu₄Fe₂)As₄S₁₃			3	187176,187180,187217	1803
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃			24	187176,187180,187194,187213,187215,187226,187232,187238,187241,187242,187244,187245,187265,187279,187280,187281,187290,187299,187301,187303,187307,187313,187318,187423	5317
Thorite ()*	Zircon	Th(SiO₄)	1693.8	1668.9	41	187134,187141,187142,187371,187373,187374,187375,187377,187378,187380,187382,187384,187387,187389,187390,187392,187393,187395,187397,187398,187401,187402,187403,187404,187405,187406,187407,187408,187409,187410,187411,187412,187413,187415,187420,187421,187424,187427,187428,187429,187430	1006
Todorokite ()*	None	(Na,Ca,K,Ba,Sr)_1-x(Mn,Mg,Al)₆O₁₂·3-4H₂O			2	187321,187326	433
Topaz ()*	Topaz	Al₂SiO₄F₂			2	187255,187303	1476
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂			1	187137	2562
Tridymite ()*	Tridymite	SiO₂			1	187269	458
Tyuyamunite ()*	None	Ca(UO₂)₂(VO₄)₂·5-8H₂O			1	187151	628
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O			1	187151	890
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O			9	187128,187135,187139,187140,187218,187261,187266,187282,187393	652
Volborthite ()*	Volborthite	Cu₃V₂O₇(OH)₂·2H₂O	40	30	1	187292	155
Wollastonite ()*	Wollastonite	CaSiO₃			1	187137	1247
Wulfenite ()*	Scheelite	PbMoO₄			1	187329	1655
Xenotime-(Y) ()*	Zircon	Y(PO₄)			1	187128	939
Zircon ()*	Zircon	Zr(SiO₄)			2	187393,187428	5251
Zunyite ()*	None	Al₁₃Si₅O₂₀(OH,F)₁₈Cl			2	187171,187234	86

15 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	Sample Num	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference ID
NAVDAT-35590	40	30	35±5			35590		112169	Green Mountain Deposit, Silver Cliff District, Custer Co., Colorado, USA		NAVDAT	NAVDAT
ree-00657	551	551	551 Ma (K-Ar, rie, fenite)	K-Ar	rie			112157	Gem Park Complex Prospect (Wet Mountains), Wet Mountains Area, Custer Co., Colorado, USA	Gem Park	Orris and Grauch (2002)	USGSOFR02_189
USGS-U-Th-Pb-01615_206_238	1685.2	1685.2	1685.2	206_238	zircon		Zircon	112293	Twenty Grand Claim, McKinley Mountain Area, Wet Mountains Area, Custer Co., Colorado, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01615_207_206	1693	1693	1693	207_206	zircon		Zircon	112293	Twenty Grand Claim, McKinley Mountain Area, Wet Mountains Area, Custer Co., Colorado, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01615_207_235	1688.7	1688.7	1688.7	207_235	zircon		Zircon	112293	Twenty Grand Claim, McKinley Mountain Area, Wet Mountains Area, Custer Co., Colorado, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01616_206_238	1680.8	1680.8	1680.8	206_238	zircon		Zircon	112293	Twenty Grand Claim, McKinley Mountain Area, Wet Mountains Area, Custer Co., Colorado, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01616_207_206	1693.8	1693.8	1693.8	207_206	zircon		Zircon	112293	Twenty Grand Claim, McKinley Mountain Area, Wet Mountains Area, Custer Co., Colorado, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01616_207_235	1686.5	1686.5	1686.5	207_235	zircon		Zircon	112293	Twenty Grand Claim, McKinley Mountain Area, Wet Mountains Area, Custer Co., Colorado, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01617_206_238	1675.4	1675.4	1675.4	206_238	zircon		Zircon	112293	Twenty Grand Claim, McKinley Mountain Area, Wet Mountains Area, Custer Co., Colorado, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01617_207_206	1693	1693	1693	207_206	zircon		Zircon	112293	Twenty Grand Claim, McKinley Mountain Area, Wet Mountains Area, Custer Co., Colorado, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01617_207_235	1683.2	1683.2	1683.2	207_235	zircon		Zircon	112293	Twenty Grand Claim, McKinley Mountain Area, Wet Mountains Area, Custer Co., Colorado, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01618_206_238	1668.9	1668.9	1668.9	206_238	zircon		Zircon	112293	Twenty Grand Claim, McKinley Mountain Area, Wet Mountains Area, Custer Co., Colorado, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01618_207_206	1687.5	1687.5	1687.5	207_206	zircon		Zircon	112293	Twenty Grand Claim, McKinley Mountain Area, Wet Mountains Area, Custer Co., Colorado, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
USGS-U-Th-Pb-01618_207_235	1677.1	1677.1	1677.1	207_235	zircon		Zircon	112293	Twenty Grand Claim, McKinley Mountain Area, Wet Mountains Area, Custer Co., Colorado, USA		USGS-U-Th-Pb	USGS-U-Th-Pb
NAVDAT-35612	35	25	30±5			35612		112283	Strip Mine (MRDS - 10107946), Wet Mountains Area, Custer Co., Colorado, USA		NAVDAT	NAVDAT

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...