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:
South Platte Pegmatite District, Jefferson Co., Colorado, USA

Oldest recorded age at locality: 1079
Youngest recorded age at locality: 1010

mindat Locality ID: 66693
mindat URL: http://www.mindat.org/loc-66693.html

Tectonic Settings:

Total number of sublocalities beneath "South Platte Pegmatite District, Jefferson Co., Colorado, USA": 49
Total number of bottom-level sublocalities: 49

Number of Child Localities: 49
Child Localities:
Bear Creek
Big Bear No. 2 Pegmatite (Big Bear Pegmatite; Little Bear Pegmatite; Big Bear No. 1 Pegmatite)
Big Bertha Mine (Big Bertha Pegmatite)
Buffalo Creek
Butte No. 1 (Daisey Belle)
Butterfield Pegmatites
Catherine No. 1 Mine
Cyrtolite-bearing Pegmatite Deposit (MRDS - 10191580)
Dazie Bell Claim
Deer Trail Pegmatite
Delbert Claims No. 1 & 2
Gemini Pegmatite
Hidden Valley Mine
Hollingsworth Pegmatite
Janet Lutricia Pegmatite
Judy Ann Mine
Last Dollar Pegmatite
Lesser White Cloud Pegmatite
Little Bill Pegmatite
Little Patsy Pegmatite (Patsy Pegmatite)
Luster No. 1 Pegmatite (Lester Pegmatite; Oregon No. 3 Pegmatite; Ytrrium No. 1 Pegmatite)
Luster No. 2 Pegmatite
Madonna No. 1 Pegmatite (Madonna Eastern Pegmatite)
Madonna No. 2 Pegmatite (Deep Hole Pegmatite)
Madonna No. 3 Pegmatite (Madonna Western Pegmatite)
McGuire Mine
Mickey No. 1 Occurrence
Mugford Pegmatite
Old Luster Lode
Oregon No. 1 Pegmatite (Raleigh Peak No. 2 And 2a Pegmatite)
Oregon No. 1½ Pegmatite (Raleigh Peak Big Bear Pegmatite)
Oregon No. 2 Pegmatite (Raleigh Peak No. 3 Pegmatite)
Oregon No. 2½ Pegmatite (Raleigh Peak No. 4 Pegmatite; Big Dick Pegmatite)
Oregon No. 3 Mine (Quartz Knob; White Cap-Raleigh Peak Group)
Raleigh Park Mine
Ramona Pegmatite (Elizabeth Pegmatite)
Seerie Pegmatite (Cooper Pegmatite)
Shuttle Run Pegmatite
Susy Belle Occurrence
Twin Cedars Pegmatite
Unknown Granite (MRDS - 10016587)
Unknown Granite (MRDS - 10108126)
Unknown Quartz - Feldspar - Mica Occurrence (MRDS - 10016599)
Unnamed Pegmatite
Vermillion Ranch Prospect
White Cap Pegmatite
White Cloud Pegmatite
White Eagle Pegmatites
Yammy Yogurt Claim

Latitude: 39°23'42"N
Longitude: 105°13'42"W
Decimal Degree (lat, lon): 39.395,-105.22833333333

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	Autunite	Baryte	Beryl	Calcite	Chlorite	Clay	Columbite	Corundum	Epidote
Feldspar	Fluocerite	Fluorite	Gadolinite	Kaolinite	Mica	Molybdenite	Monazite	None	Not in a structural group
Pyrite	Quartz	Rutile	Scheelite	Topaz	Zircon

Albite ()*	Allanite-(Ce) ()*	Anhydrite ()*	Autunite ()*	Baryte ()*
Beryl ()*	Calcite ()*	Clinochlore ()*	Dawsonite ()*	Euxenite-(Y) ()*
Fergusonite-(Y) ()*	Fluocerite-(Ce) ()*	Fluorite ()*	Gadolinite-(Ce) ()*	Gadolinite-(Y) ()*
Hematite ()*	Ishikawaite ()*	Kainosite-(Y) ()*	Kaolinite ()*	Kasolite ()*
Microcline ()*	Molybdenite ()*	Monazite-(Ce) ()*	Muscovite ()*	Pyrite ()*
Pyrolusite ()*	Quartz ()*	Samarskite-(Y) ()*	Samarskite-(Yb) ()*	Sellaite ()*
Siderite ()*	Synchysite-(Y) ()*	Thalénite-(Y) ()*	Thorite ()*	Topaz ()*
Torbernite ()*	Uraninite ()*	Xenotime-(Y) ()*	Yttrotantalite-(Y) ()*	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 Ba Be C Ca Ce Cu F Fe H K Mg Mn Mo Na Nb O P Pb S Si Ta Th Ti U Y Yb Zr

Elements from minerals reported directly at this locality: C Ca Fe Mo O S

Structural Groups for minerals in this locality:
Allanite Autunite Baryte Beryl Calcite Chlorite Clay Columbite Corundum Epidote
Feldspar Fluocerite Fluorite Gadolinite Kaolinite Mica Molybdenite Monazite None Not in a structural group
Pyrite Quartz Rutile Scheelite Topaz Zircon

40 IMA Minerals at location:

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
Albite ()*	Feldspar	Na(AlSi₃O₈)	1079	1075	10	190831,190834,190835,190837,190839,190851,190854,190855,190864,190866	8803
Allanite-(Ce) ()*	Allanite Epidote	CaCe(Al₂Fe²⁺)[Si₂O₇][SiO₄]O(OH)	1079	1075	2	190841,190864	706
Anhydrite ()*	Not in a structural group	Ca(SO₄)	1010	1010	0		1588
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	1079	1075	1	190837	1272
Baryte ()*	Baryte	Ba(SO₄)	1010	1010	1	190821	11547
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	1079	1075	1	190857	4286
Calcite ()*	Calcite	Ca(CO₃)	1010	1010	0		27770
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	1079	1075	1	190864	1756
Dawsonite ()*	None	NaAl(CO₃)(OH)₂	1010	1010	1	190838	90
Euxenite-(Y) ()*	Columbite	Y(NbTi)O₆	1010	1010	2	190845,190862	414
Fergusonite-(Y) ()*	Scheelite	YNbO₄	1079	1075	4	190837,190838,190851,190864	196
Fluocerite-(Ce) ()*	Fluocerite	CeF₃	1079	1075	1	190837	45
Fluorite ()*	Fluorite	CaF₂	1079	1075	25	190819,190820,190821,190822,190824,190826,190828,190833,190834,190836,190837,190838,190841,190842,190844,190846,190848,190849,190851,190854,190855,190856,190864,190865,190866	9617
Gadolinite-(Ce) ()*	Gadolinite	Ce₂Fe²⁺Be₂O₂(SiO₄)₂	1079	1075	2	190826,190864	31
Gadolinite-(Y) ()*	Gadolinite	Y₂Fe²⁺Be₂O₂(SiO₄)₂	1079	1075	2	190841,190864	163
Hematite ()*	Corundum	Fe₂O₃	1079	1075	11	190821,190827,190829,190831,190832,190837,190847,190849,190850,190864,190866	14640
Ishikawaite ()*	Columbite	(U,Fe,Y)NbO₄	1079	1075	1	190837	24
Kainosite-(Y) ()*	None	Ca₂Y₂(SiO₃)₄(CO₃)·H₂O	1079	1075	1	190864	99
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	1010	1010	2	190839,190866	5591
Kasolite ()*	None	Pb(UO₂)(SiO₄)·H₂O	1079	1075	1	190854	198
Microcline ()*	Feldspar	K(AlSi₃O₈)	1079	1075	17	190819,190821,190823,190826,190827,190832,190837,190838,190841,190842,190848,190849,190850,190853,190854,190855,190864	4924
Molybdenite ()*	Molybdenite	MoS₂	1010	1010	0		5800
Monazite-(Ce) ()*	Monazite	Ce(PO₄)	1079	1075	2	190837,190841	945
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1079	1075	4	190833,190837,190854,190864	17380
Pyrite ()*	Pyrite	FeS₂	1010	1010	3	190821,190838,190851	39462
Pyrolusite ()*	Rutile	MnO₂	1010	1010	2	190826,190851	3106
Quartz ()*	Quartz	SiO₂	1079	1075	33	190818,190819,190821,190822,190823,190824,190826,190827,190828,190829,190832,190833,190834,190837,190838,190839,190840,190841,190842,190844,190847,190848,190849,190851,190853,190854,190855,190856,190857,190860,190864,190865,190866	61156
Samarskite-(Y) ()*	Columbite	YFe³⁺Nb₂O₈	1079	1075	6	190823,190830,190837,190838,190851,190863	353
Samarskite-(Yb) ()*	Columbite	YbNbO₄	1079	1075	1	190837	1
Sellaite ()*	Rutile	MgF₂	1010	1010	1	190826	46
Siderite ()*	Calcite	Fe(CO₃)	1010	1010	0		6417
Synchysite-(Y) ()*	None	CaY(CO₃)₂F	1079	1075	3	190820,190854,190864	55
Thalénite-(Y) ()*	None	Y₃Si₃O₁₀F	1079	1075	1	190864	26
Thorite ()*	Zircon	Th(SiO₄)	1079	1075	8	190820,190823,190837,190838,190840,190847,190854,190864	1006
Topaz ()*	Topaz	Al₂SiO₄F₂	1079	1075	11	190824,190833,190837,190838,190843,190844,190849,190854,190856,190864,190866	1476
Torbernite ()*	None	Cu(UO₂)₂(PO₄)₂·12H₂O	1079	1075	1	190837	1059
Uraninite ()*	Fluorite	UO₂	1079	1075	1	190854	2718
Xenotime-(Y) ()*	Zircon	Y(PO₄)	1079	1075	4	190819,190820,190841,190864	939
Yttrotantalite-(Y) ()*	Columbite	(Y,U,Fe²⁺)(Ta,Nb)(O,OH)₄	1079	1075	1	190837	51
Zircon ()*	Zircon	Zr(SiO₄)	1079	1075	8	190820,190823,190837,190838,190854,190861,190862,190864	5251

2 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
	ree-00688	1010	1010	1010 Ma											66693	South Platte Pegmatite District, Jefferson Co., Colorado, USA	South Platte District	Orris and Grauch (2002)		USGSOFR02_189

Sample	Source Locality	Reference URL
R110058	Little Patsy Pegmatite (Patsy Pegmatite), South Platte Pegmatite District, Jefferson Co., Colorado, USA	https://rruff.info/R110058

All locality data graciously provided by mindat.org

All age data...