Mineral Evolution Database

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

Mineral locality data provided by mindat.org

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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:
Eight Mile Park Pegmatite District, Fremont Co., Colorado, USA

mindat Locality ID: 14217
mindat URL: http://www.mindat.org/loc-14217.html

Tectonic Settings:

Total number of sublocalities beneath "Eight Mile Park Pegmatite District, Fremont Co., Colorado, USA": 21
Total number of bottom-level sublocalities: 20

Number of Child Localities: 20
Child Localities:
Border Feldspar Prospect No. 1 And No. 2
Colfelco No. 12 Pegmatite Occurrence
Consolidated Feldspar Corporation Mine (Feldspar Corporation Mine)
Dell Prospect (C. B. Dell Prospect)
Eight Mile Park
Hoyt Adkins Ranch Anomaly 3 Occurrence
Lorain Pegmatite
McMullin Lease No. 2 Occurrence
Meyers - McMullin Pegmatite Occurrence
Meyers Quarry (Meyers Quarry; Meyers-Halstead Quarry; Suzana Claims; Suzanna Claims; Royal Gorge No. 2)
Mica Lode Mine (Mica Hill Mine)
Mica Lode-Meyers Quarry
R. H. Magnuson Mine (Magnusson Crosscut)
Rim Pegmatite Occurrence (Rim Prospect)
Ring Pegmatite Occurrence (Ring Prospect)
School Section Mine (Shipley Cut; Meyers Cut)
Suzanna Mine
Twin Mountain
Unnamed Pegmatite
Van Buskirk Mine

Latitude: 38°28'51"N
Longitude: 105°18'12"W
Decimal Degree (lat, lon): 38.480833333333,-105.30333333333

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.

Allophane	Alunite	Amphibole	Apatite	Aragonite	Autunite	Beryl	Bismutite	Calcite	Clay
Columbite	Copper	Corundum	Covellite	Diaspore	Feldspar	Fluorite	Garnet	Malachite	Meta-autunite
Mica	Monazite	None	Not in a structural group	Quartz	Rutile	Spinel	Tourmaline	Triplite	Zircon

Actinolite ()*	Albite ()*	Almandine ()*	Amblygonite ()*	Andradite ()*
Autunite ()*	Azurite ()*	Beryl ()*	Beyerite ()*	Bismutite ()*
Calcite ()*	Cerussite ()*	Chalcocite ()*	Chrysocolla ()*	Columbite-(Mn) ()*
Cordierite ()*	Covellite ()*	Djurleite ()*	Elbaite ()*	Fluorapatite ()*
Gahnite ()*	Goethite ()*	Goyazite ()*	Hematite ()*	Liandratite ()*
Magnetite ()*	Malachite ()*	Meta-autunite ()*	Microcline ()*	Monazite-(Ce) ()*
Montebrasite ()*	Muscovite ()*	Namibite ()*	Parsonsite ()*	Pyrolusite ()*
Quartz ()*	Samarskite-(Y) ()*	Schorl ()*	Schumacherite ()*	Silver ()*
Spessartine ()*	Thorite ()*	Torbernite ()*	Triplite ()*	Upalite ()*
Uraninite ()*

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 B Be Bi C Ca Ce Cu F Fe H K Li Mg Mn Na Nb O P Pb S Si Sr Th U V Y Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Allophane Alunite Amphibole Apatite Aragonite Autunite Beryl Bismutite Calcite Clay
Columbite Copper Corundum Covellite Diaspore Feldspar Fluorite Garnet Malachite Meta-autunite
Mica Monazite None Not in a structural group Quartz Rutile Spinel Tourmaline Triplite Zircon

46 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	1	188372	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	4	188358,188363,188364,188369	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	2	188362,188364	2353
Amblygonite ()*	None	LiAl(PO₄)F	1	188363	244
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	1	188364	1534
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	1	188358	1272
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	2	188358,188364	5509
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	15	188354,188356,188358,188360,188361,188362,188363,188364,188366,188367,188368,188369,188370,188373,188374	4286
Beyerite ()*	Bismutite	CaBi₂O₂(CO₃)₂	4	188358,188364,188365,188369	96
Bismutite ()*	Bismutite	Bi₂O₂(CO₃)	5	188354,188358,188363,188364,188369	716
Calcite ()*	Calcite	Ca(CO₃)	3	188358,188360,188369	27770
Cerussite ()*	Aragonite	Pb(CO₃)	2	188358,188362	4979
Chalcocite ()*	None	Cu₂S	1	188358	5707
Chrysocolla ()*	Allophane	(Cu_2-xAl_x)H_2-xSi₂O₅(OH)₄·nH₂O	2	188364,188369	3531
Columbite-(Mn) ()*	Columbite	Mn²⁺Nb₂O₆	2	188363,188364	289
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈	1	188358	1008
Covellite ()*	Covellite	CuS	1	188369	4165
Djurleite ()*	None	Cu₃₁S₁₆	3	188358,188364,188369	300
Elbaite ()*	Tourmaline	Na(Al_1.5Li_1.5)Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	4	188358,188362,188363,188364	520
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	4	188358,188364,188369,188374	2740
Gahnite ()*	Spinel	ZnAl₂O₄	2	188358,188364	445
Goethite ()*	Diaspore	FeO(OH)	1	188363	7437
Goyazite ()*	Alunite	SrAl₃(PO₄)(PO₃OH)(OH)₆	1	188363	173
Hematite ()*	Corundum	Fe₂O₃	2	188364,188370	14640
Liandratite ()*	None	U⁶⁺Nb₂O₈	1	188364	21
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	8	188358,188360,188361,188362,188367,188368,188370,188374	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	3	188363,188364,188369	12537
Meta-autunite ()*	Meta-autunite	Ca(UO₂)₂(PO₄)₂·6H₂O	1	188358	388
Microcline ()*	Feldspar	K(AlSi₃O₈)	15	188354,188355,188356,188358,188360,188361,188362,188363,188364,188366,188367,188368,188369,188370,188374	4924
Monazite-(Ce) ()*	Monazite	Ce(PO₄)	1	188358	945
Montebrasite ()*	None	LiAl(PO₄)(OH)	2	188358,188363	200
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	13	188354,188356,188358,188360,188361,188362,188363,188364,188367,188368,188369,188370,188374	17380
Namibite ()*	None	Cu(BiO)₂(VO₄)(OH)	1	188365	24
Parsonsite ()*	None	Pb₂(UO₂)(PO₄)₂	2	188358,188364	63
Pyrolusite ()*	Rutile	MnO₂	1	188357	3106
Quartz ()*	Quartz	SiO₂	14	188354,188358,188360,188361,188362,188363,188364,188365,188366,188367,188368,188369,188370,188374	61156
Samarskite-(Y) ()*	Columbite	YFe³⁺Nb₂O₈	1	188358	353
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	6	188354,188358,188363,188364,188369,188374	2705
Schumacherite ()*	None	Bi₃O(VO₄)₂(OH)	1	188365	12
Silver ()*	Copper	Ag	2	188358,188369	5186
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃	2	188358,188364	1214
Thorite ()*	Zircon	Th(SiO₄)	1	188369	1006
Torbernite ()*	None	Cu(UO₂)₂(PO₄)₂·12H₂O	3	188358,188363,188373	1059
Triplite ()*	Triplite	Mn²⁺₂(PO₄)F	3	188358,188364,188369	233
Upalite ()*	None	Al(UO₂)₃(PO₄)₂O(OH)·7H₂O	1	188358	3
Uraninite ()*	Fluorite	UO₂	1	188364	2718

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...