Mineral Evolution Database

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

Mineral locality data provided by mindat.org

Important Update News

The RRUFF Project has been migrated to RRUFF.net. Please update your bookmarks immediately, if you have not done so.

The data on this website is already three years out of date, and the entire website will be taken offline before the end of the year.

We are grateful to NASA for the funding of this effort.

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:
Routt Co., Colorado, USA

Oldest recorded age at locality: 1773
Youngest recorded age at locality: 1757

mindat Locality ID: 50115
mindat URL: http://www.mindat.org/loc-50115.html

Tectonic Settings:

Total number of sublocalities beneath "Routt Co., Colorado, USA": 128
Total number of bottom-level sublocalities: 111

Number of Child Localities: 20
Child Localities:
Bear Creek District
Boulder Park
Clark
Copper Ridge District
Elkhorn District (Three Forks District; Slater District)
Fish Creek District
Hahns Peak District (Columbine District)
Mount Zirkel
Northern Park Range
Oak Creek District (Red Gorge District)
Park Range
Rock Creek District (Gore Range District)
Slater
Slater Park Area
Slavonia District
Spring Creek District (Steamboat Springs District)
Tom Thumb Mine
Twentymile Park District
Unknown Uranium Occurrence (MRDS - 10216280)
Yarmany

Latitude: 40°38'33"N
Longitude: 106°49'42"W
Decimal Degree (lat, lon): 40.6425,-106.82833333333

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.

Allanite	Alunite	Amphibole	Analcime	Apatite	Aragonite	Arsenopyrite	Autunite	Baryte	Beryl
Calcite	Chalcopyrite	Clay	Clinozoisite	Columbite	Copper	Corundum	Covellite	Enargite	Epidote
Feldspar	Fluorite	Gypsum	Kaolinite	Malachite	Marcasite	Melanterite	Meta-autunite	Mica	Molybdenite
Nickeline	None	Not in a structural group	Olivine	Pyrite	Pyroxene	Quartz	Rocksalt	Schoepite	Smectite-vermiculite
Sphalerite	Spinel	Staurolite	Stibnite	Talc	Tetrahedrite	Wavellite	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 C Ca Ce Cr Cu F Fe H K Mg Mn Mo Na Nb O P Pb S Sb Si Ta Th Ti U V Y Zn Zr

Elements from minerals reported directly at this locality: Al O Si

Structural Groups for minerals in this locality:
Allanite Alunite Amphibole Analcime Apatite Aragonite Arsenopyrite Autunite Baryte Beryl
Calcite Chalcopyrite Clay Clinozoisite Columbite Copper Corundum Covellite Enargite Epidote
Feldspar Fluorite Gypsum Kaolinite Malachite Marcasite Melanterite Meta-autunite Mica Molybdenite
Nickeline None Not in a structural group Olivine Pyrite Pyroxene Quartz Rocksalt Schoepite Smectite-vermiculite
Sphalerite Spinel Staurolite Stibnite Talc Tetrahedrite Wavellite Wurtzite Zircon

76 IMA Minerals at location:

Allanite-(Ce) ()*	Allanite-(Y) ()*	Analcime ()*	Anatase ()*	Ankerite ()*
Arsenopyrite ()*	Augite ()*	Autunite ()*	Azurite ()*	Baryte ()*
Beryl ()*	Bornite ()*	Calcite ()*	Carnotite ()*	Cerussite ()*
Chalcocite ()*	Chalcopyrite ()*	Chromite ()*	Copper ()*	Cordierite ()*
Corundum ()*	Covellite ()*	Crandallite ()*	Dickite ()*	Diopside ()*
Dolomite ()*	Enargite ()*	Enstatite ()*	Epidote ()*	Euxenite-(Y) ()*
Fluorapatite ()*	Forsterite ()*	Fourmarierite ()*	Gahnite ()*	Galena ()*
Gold ()*	Gypsum ()*	Hastingsite ()*	Hematite ()*	Jarosite ()*
Kaolinite ()*	Kyanite ()*	Magnesio-hornblende ()*	Magnetite ()*	Malachite ()*
Marcasite ()*	Melanterite ()*	Meta-autunite ()*	Microcline ()*	Molybdenite ()*
Montmorillonite ()*	Muscovite ()*	Orthoclase ()*	Pargasite ()*	Piemontite ()*
Plumbogummite ()*	Proustite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*
Saléeite ()*	Sanidine ()*	Sillimanite ()*	Silver ()*	Sphalerite ()*
Spinel ()*	Staurolite ()*	Stibnite ()*	Talc ()*	Tetrahedrite-(Zn) ()*
Tremolite ()*	Uraninite ()*	Uranophane-α ()*	Variscite ()*	Wavellite ()*
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
Allanite-(Ce) ()*	Allanite Epidote	CaCe(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH)	1773	1757	1	195488	706
Allanite-(Y) ()*	Allanite Epidote	CaY(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH)	1773	1757	1	195488	28
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O			1	195569	1627
Anatase ()*	Not in a structural group	TiO₂			1	195499	2162
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂			1	195585	3092
Arsenopyrite ()*	Arsenopyrite	FeAsS			1	195525	9052
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆			1	195562	2060
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O			4	195491,195494,195508,195557	1272
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂			1	195499	5509
Baryte ()*	Baryte	Ba(SO₄)			2	195519,195585	11547
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈			1	195560	4286
Bornite ()*	None	Cu₅FeS₄			4	195499,195529,195570,195574	5516
Calcite ()*	Calcite	Ca(CO₃)			2	195477,195569	27770
Carnotite ()*	None	K₂(UO₂)₂(VO₄)₂·3H₂O			1	195494	1184
Cerussite ()*	Aragonite	Pb(CO₃)			2	195479,195532	4979
Chalcocite ()*	None	Cu₂S			3	195499,195529,195570	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂			10	195470,195479,195491,195499,195505,195512,195519,195529,195570,195574	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄			1	195492	3902
Copper ()*	Copper	Cu			1	195529	3846
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈			1	195470	1008
Corundum ()*	Corundum	Al₂O₃			1	195499	1797
Covellite ()*	Covellite	CuS			1	195499	4165
Crandallite ()*	Alunite	CaAl₃(PO₄)(PO₃OH)(OH)₆			1	195585	310
Dickite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			1	195499	651
Diopside ()*	Pyroxene	CaMgSi₂O₆			1	195470	4135
Dolomite ()*	None	CaMg(CO₃)₂			1	195585	9895
Enargite ()*	Enargite Wurtzite	Cu₃AsS₄			1	195519	910
Enstatite ()*	Pyroxene	Mg₂Si₂O₆			1	195562	944
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)			1	195470	8173
Euxenite-(Y) ()*	Columbite	Y(NbTi)O₆			3	195560,195572,195573	414
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F			1	195499	2740
Forsterite ()*	Olivine	Mg₂(SiO₄)			1	195470	1188
Fourmarierite ()*	Schoepite	Pb_1-xO_3-2x(UO₂)₄(OH)_4+2x·4H₂O			1	195573	61
Gahnite ()*	Spinel	ZnAl₂O₄			1	195470	445
Galena ()*	Rocksalt	PbS			5	195479,195519,195530,195532,195574	24243
Gold ()*	Copper	Au			16	195483,195503,195504,195506,195507,195513,195514,195520,195523,195526,195532,195549,195550,195552,195553,195556	30554
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O			1	195585	6890
Hastingsite ()*	Amphibole	NaCa₂(Fe²⁺₄Fe³⁺)(Si₆Al₂)O₂₂(OH)₂			1	195512	209
Hematite ()*	Corundum	Fe₂O₃			1	195574	14640
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆			1	195531	2228
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄			1	195585	5591
Kyanite ()*	Not in a structural group	Al₂OSiO₄	1773	1757	0		1507
Magnesio-hornblende ()*	Amphibole	Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂			1	195558	238
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄			1	195468	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂			1	195562	12537
Marcasite ()*	Marcasite	FeS₂			1	195499	5674
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O			1	195592	915
Meta-autunite ()*	Meta-autunite	Ca(UO₂)₂(PO₄)₂·6H₂O			1	195531	388
Microcline ()*	Feldspar	K(AlSi₃O₈)			1	195468	4924
Molybdenite ()*	Molybdenite	MoS₂			3	195505,195512,195570	5800
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O			1	195499	1508
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂			4	195470,195499,195560,195575	17380
Orthoclase ()*	Feldspar	K(AlSi₃O₈)			1	195499	2349
Pargasite ()*	Amphibole	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂			1	195562	313
Piemontite ()*	Epidote	Ca₂(Al₂Mn³⁺)[Si₂O₇][SiO₄]O(OH)			1	195470	260
Plumbogummite ()*	Alunite	PbAl₃(PO₄)(PO₃OH)(OH)₆			1	195499	170
Proustite ()*	None	Ag₃AsS₃			1	195499	733
Pyrite ()*	Pyrite	FeS₂			4	195479,195519,195571,195585	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈			1	195571	9056
Quartz ()*	Quartz	SiO₂			5	195468,195518,195519,195529,195585	61156
Saléeite ()*	None	Mg(UO₂)₂(PO₄)₂(H₂O)₁₀			1	195531	95
Sanidine ()*	Feldspar	K(AlSi₃O₈)			1	195585	598
Sillimanite ()*	Not in a structural group	Al₂SiO₅			2	195470,195518	1516
Silver ()*	Copper	Ag			7	195509,195525,195526,195528,195529,195532,195554	5186
Sphalerite ()*	Sphalerite	ZnS			4	195470,195479,195519,195574	21482
Spinel ()*	Spinel	MgAl₂O₄			2	195470,195562	1934
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)			1	195518	978
Stibnite ()*	Stibnite	Sb₂S₃			1	195499	3418
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			1	195470	3337
Tetrahedrite-(Zn) ()*	Tetrahedrite	Cu₆(Cu₄Zn₂)Sb₄S₁₃			2	195499,195525	5317
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂			1	195470	2562
Uraninite ()*	Fluorite	UO₂			5	195491,195557,195560,195573,195574	2718
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O			2	195488,195491	890
Variscite ()*	None	Al(PO₄)·2H₂O			1	195499	301
Wavellite ()*	Wavellite	Al₃(PO₄)₂(OH)₃·5H₂O			1	195499	374
Zircon ()*	Zircon	Zr(SiO₄)			1	195518	5251

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Bradley_2012_075	1773	1757	1765±8	U/Pb			zircon				Zircon			118350	Buffalo Pass Occurrence, Fish Creek District, Routt Co., Colorado, USA	Buffalo Pass	McCauley and Bradley (2014)	10.3749/canmin.52.2.183	CM52_183

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...