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:
St Peters Dome, Cheyenne District (St. Peters Dome District), El Paso Co., Colorado, USA

Oldest recorded age at locality: 1079
Youngest recorded age at locality: 1075

mindat Locality ID: 3622
mindat URL: http://www.mindat.org/loc-3622.html

Tectonic Settings:

Total number of sublocalities beneath "St Peters Dome, Cheyenne District (St. Peters Dome District), El Paso Co., Colorado, USA": 4
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
30-4 Pegmatite
Cryolite Mine (65-2 Pegmatite)
Eureka Tunnel (1-15 Pegmatite)
Unnamed Pegmatite

Latitude: 38°45'5"N
Longitude: 104°54'15"W
Decimal Degree (lat, lon): 38.751388888889,-104.90416666667

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.

Amphibole	Aragonite	Astrophyllite	Baryte	Bastnäsite	Cancrinite-sodalite	Chalcopyrite	Clay	Columbite	Coronadite
Corundum	Crichtonite	Feldspar	Fluorite	Jarlite	Kaolinite	Löllingite	Molybdenite	Monazite	None
Not in a structural group	Olivine	Perovskite	Pyrite	Pyrochlore	Pyroxene	Quartz	Rocksalt	Rutile	Scheelite
Sodalite	Sphalerite	Topaz	Weberite	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: Al As Ba Be C Ca Ce Cr Cu F Fe H K Mg Mn Mo Na Nb O P Pb S Si Sn Th Ti U V Y Zn Zr

Elements from minerals reported directly at this locality: Al As Ba C Ce Cu F Fe H Mn Mo Na Nb O P Pb S Si Sn Ti U Zn

Structural Groups for minerals in this locality:
Amphibole Aragonite Astrophyllite Baryte Bastnäsite Cancrinite-sodalite Chalcopyrite Clay Columbite Coronadite
Corundum Crichtonite Feldspar Fluorite Jarlite Kaolinite Löllingite Molybdenite Monazite None
Not in a structural group Olivine Perovskite Pyrite Pyrochlore Pyroxene Quartz Rocksalt Rutile Scheelite
Sodalite Sphalerite Topaz Weberite Zircon

52 IMA Minerals at location:

Aegirine ()*	Albite ()*	Anglesite ()*	Arfvedsonite ()*	Astrophyllite ()*
Baryte ()*	Bastnäsite-(Ce) ()*	Bertrandite ()*	Calcjarlite ()*	Cassiterite ()*
Cerianite-(Ce) ()*	Cerussite ()*	Chalcopyrite ()*	Columbite-(Fe) ()*	Coronadite ()*
Cryolite ()*	Elpasolite ()*	Fayalite ()*	Fluorite ()*	Galena ()*
Gearksutite ()*	Genthelvite ()*	Gibbsite ()*	Hematite ()*	Hydrokenoralstonite ()*
Ilmenite ()*	Kaolinite ()*	Kasolite ()*	Laihunite ()*	Löllingite ()*
Massicot ()*	Microcline ()*	Molybdenite ()*	Monazite-(Ce) ()*	Murataite-(Y) ()*
Nacrite ()*	Pachnolite ()*	Plattnerite ()*	Prosopite ()*	Pyrite ()*
Quartz ()*	Riebeckite ()*	Rutile ()*	Senaite ()*	Sphalerite ()*
Thomsenolite ()*	Thorite ()*	Topaz ()*	Weberite ()*	Wulfenite ()*
Xenotime-(Y) ()*	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
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	1079	1075	1	188066	1022
Albite ()*	Feldspar	Na(AlSi₃O₈)	1079	1075	0		8803
Anglesite ()*	Baryte	Pb(SO₄)	1079	1075	0		2734
Arfvedsonite ()*	Amphibole	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂	1079	1075	1	188066	295
Astrophyllite ()*	Astrophyllite	K₂NaFe²⁺₇Ti₂(Si₄O₁₂)₂O₂(OH)₄F	1079	1075	2	188065,188066	161
Baryte ()*	Baryte	Ba(SO₄)	1079	1075	0		11547
Bastnäsite-(Ce) ()*	Bastnäsite	Ce(CO₃)F	1079	1075	0		304
Bertrandite ()*	Not in a structural group	Be₄Si₂O₇(OH)₂	1079	1075	1	188065	606
Calcjarlite ()*	Jarlite	Na₂(Ca, )₁₄(Mg, )₂Al₁₂F₆₄(OH)₄	1079	1075	1	188064	2
Cassiterite ()*	Rutile	SnO₂	1079	1075	0		5171
Cerianite-(Ce) ()*	Fluorite	CeO₂	1079	1075	0		94
Cerussite ()*	Aragonite	Pb(CO₃)	1079	1075	0		4979
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1079	1075	0		27198
Columbite-(Fe) ()*	Columbite	Fe²⁺Nb₂O₆	1079	1075	0		518
Coronadite ()*	Coronadite	Pb(Mn⁴⁺₆Mn³⁺₂)O₁₆	1079	1075	0		227
Cryolite ()*	Perovskite	Na₂NaAlF₆	1079	1075	3	188063,188064,188065	50
Elpasolite ()*	Perovskite	K₂NaAlF₆	1079	1075	1	188065	16
Fayalite ()*	Olivine	Fe²⁺₂(SiO₄)	1079	1075	0		371
Fluorite ()*	Fluorite	CaF₂	1079	1075	2	188064,188065	9617
Galena ()*	Rocksalt	PbS	1079	1075	1	188064	24243
Gearksutite ()*	None	CaAlF₄(OH)·H₂O	1079	1075	3	188063,188064,188065	68
Genthelvite ()*	Cancrinite-sodalite Sodalite	Be₃Zn₄(SiO₄)₃S	1079	1075	1	188066	60
Gibbsite ()*	None	Al(OH)₃	1079	1075	0		504
Hematite ()*	Corundum	Fe₂O₃	1079	1075	0		14640
Hydrokenoralstonite ()*	Pyrochlore	₂Al₂F₆(H₂O)	1079	1075	3	188063,188064,188065	56
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	1079	1075	0		5433
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	1079	1075	2	188064,188065	5591
Kasolite ()*	None	Pb(UO₂)(SiO₄)·H₂O	1079	1075	0		198
Laihunite ()*	None	(Fe³⁺,Fe²⁺, )₂(SiO₄)	1079	1075	0		15
Löllingite ()*	Löllingite	FeAs₂	1079	1075	0		762
Massicot ()*	None	PbO	1079	1075	0		202
Microcline ()*	Feldspar	K(AlSi₃O₈)	1079	1075	3	188064,188065,188066	4924
Molybdenite ()*	Molybdenite	MoS₂	1079	1075	0		5800
Monazite-(Ce) ()*	Monazite	Ce(PO₄)	1079	1075	0		945
Murataite-(Y) ()*	None	(Y,Na)₆Zn(Zn,Fe³⁺)₄(Ti,Nb,Na)₁₂O₂₉(O,F,OH)₁₀F₄	1079	1075	1	188066	2
Nacrite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	1079	1075	1	188065	112
Pachnolite ()*	None	NaCaAlF₆·H₂O	1079	1075	3	188063,188064,188065	18
Plattnerite ()*	Rutile	PbO₂	1079	1075	0		158
Prosopite ()*	None	CaAl₂F₄(OH)₄	1079	1075	3	188063,188064,188065	39
Pyrite ()*	Pyrite	FeS₂	1079	1075	0		39462
Quartz ()*	Quartz	SiO₂	1079	1075	3	188064,188065,188066	61156
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂	1079	1075	2	188065,188066	375
Rutile ()*	Rutile	TiO₂	1079	1075	2	188065,188066	5614
Senaite ()*	Crichtonite	Pb(Mn,Y,U)(Fe,Zn)₂(Ti,Fe,Cr,V)₁₈(O,OH)₃₈	1079	1075	1	188066	28
Sphalerite ()*	Sphalerite	ZnS	1079	1075	0		21482
Thomsenolite ()*	None	NaCaAlF₆·H₂O	1079	1075	3	188063,188064,188065	23
Thorite ()*	Zircon	Th(SiO₄)	1079	1075	1	188066	1006
Topaz ()*	Topaz	Al₂SiO₄F₂	1079	1075	0		1476
Weberite ()*	Weberite	Na₂MgAlF₇	1079	1075	1	188065	13
Wulfenite ()*	Scheelite	PbMoO₄	1079	1075	0		1655
Xenotime-(Y) ()*	Zircon	Y(PO₄)	1079	1075	1	188066	939
Zircon ()*	Zircon	Zr(SiO₄)	1079	1075	3	188064,188065,188066	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_132	1079	1075	1077±2	Ar/Ar						Yes				3668	Pikes Peak, El Paso Co., Colorado, USA	Pike's Peak	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...