A pegmatite mine located in the SE¼ sec. 32, T.13N., R.78W., 4 miles SW of Fox Park, 1.4 miles N of State 230, 34 miles SW of Laramie (sec. 32, T. 13 N., R. 78 W.).

Mineralization is a pegmatite outcrop 140 feet long and 15 feet wide in schist and gneiss.

Workings include a 20 foot and a 15 foot deep shafts and open cuts.

Commodity: Record 0560010077 (10181544) citing "AEC PRELIM FIELD INV-AIRBPRNE ANOMALIES" listed Uranium as a commodity. This record has been deleted. The only citation is to an anomaly. That this site could be anomalous in U is duly noted.

Deposit: GARNETS UP TO 13 MM IN PEGMATITE CUTTING PRECAMBRIAN SCHIST Minor quantities of fergusonite(?) occur in a pegmatite that cuts pre-Cambrian tourmalinized mica schist and gneiess. The pegmatite strikes N50E and dips 85NW with exposures for 140 ft. The pegmatite was mined for mica, beryl, and tantalite in 1942 and 1943. [Bull. 50, 1966, p. 220.] The pegmatite cuts pre-Cambrian tourmalinized mica schist and gneiss. There are two open pits and two timbered shafts. The pegmatite strikes N50E and dips 85 NW with exposures for 140 ft. Seventy-five feet north of the main pegmatite body is a quartz-potash feldspar-mica-plagioclase pegmatite which stirkes north and is vertical; it is apparently not connected with the larger body. Cover prevents an accurate estimate of the extent of the pegmatite beyond the workings. Muscovite is abundant near the hanging wall in the larger pegmatite. The books are light-green speckled with magnetite, and ruled. Only a small quantity is of sheet quality; about 10% is punch quality. Up to 1943, 38,000 lbs of scrap mica, 2,500 lbs of punch and 500 lbs of rifted mica were produced. Two tons of beryl (12.39% BeO) were shipped up to 1942. The beryl crystals are corroded. Small tantalite crystals (45% Ta2O3) are rare in this district; about 85 lbs were recovered up to 1943. Minor accessory minerals include fergusonite(?) and pink euhedral garnets and orange subhedral garnets about 13mm in diameter. (Bull. 50, p. 132)

Deposit type: Pegmatites

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Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

Mineral List

8 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

ⓘ Gneiss

ⓘ 'Pegmatite'

ⓘ Schist

Detailed Mineral List:

ⓘ Albite

Formula: Na(AlSi₃O₈)

Reference: Rocks & Minerals 76:382; USGS Prof. Paper 227 U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

ⓘ Albite var. Cleavelandite

Formula: Na(AlSi₃O₈)

Reference: USGS Prof. Paper 227 U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

ⓘ Beryl

Formula: Be₃Al₂(Si₆O₁₈)

Reference: Rocks & Minerals 76:382; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 33 (Table A-1).; USGS Prof. Paper 227 U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

ⓘ 'Columbite-(Fe)-Columbite-(Mn) Series'

Reference: Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 33 (Table A-1).; USGS Prof. Paper 227

ⓘ 'Fergusonite' ?

Reference: USGS Prof. Paper 227 U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

ⓘ 'Garnet Group'

Formula: X₃Z₂(SiO₄)₃

Reference: USGS Prof. Paper 227 U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

Reference: USGS Prof. Paper 227

ⓘ Microcline

Formula: K(AlSi₃O₈)

Reference: Rocks & Minerals 76:382; USGS Prof. Paper 227

ⓘ Montmorillonite

Formula: (Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O

Reference: USGS Prof. Paper 227

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

Reference: Rocks & Minerals 76:382; USGS Prof. Paper 227 U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

ⓘ Quartz

Formula: SiO₂

Reference: Rocks & Minerals 76:382; USGS Prof. Paper 227

ⓘ Schorl

Formula: NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)

Reference: Rocks & Minerals 76:382; Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 33 (Table A-1).

ⓘ 'Tantalite'

Formula: (Mn,Fe)(Ta,Nb)₂O₆

ⓘ 'Tourmaline'

Formula: AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

Reference: USGS Prof. Paper 227 U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
ⓘ	Quartz	4.DA.05	SiO₂
Group 9 - Silicates
ⓘ	Albite	9.FA.35	Na(AlSi₃O₈)
ⓘ	var. Cleavelandite	9.FA.35	Na(AlSi₃O₈)
ⓘ	Beryl	9.CJ.05	Be₃Al₂(Si₆O₁₈)
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Montmorillonite	9.EC.40	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Schorl	9.CK.05	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Unclassified Minerals, Rocks, etc.
ⓘ	'Columbite-(Fe)-Columbite-(Mn) Series'	-
ⓘ	'Fergusonite' ?	-
ⓘ	'Garnet Group'	-	X₃Z₂(SiO₄)₃
ⓘ	'Tantalite'	-	(Mn,Fe)(Ta,Nb)₂O₆
ⓘ	'Tourmaline'	-	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
H	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Be	Beryllium
Be	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
B	Boron
B	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
B	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
O	Oxygen
O	ⓘ Albite	Na(AlSi₃O₈)
O	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Quartz	SiO₂
O	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
O	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
O	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
O	ⓘ Tourmaline	AD₃G₆ (T₆O₁₈)(BO₃)₃X₃Z
O	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
O	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Na	Sodium
Na	ⓘ Albite	Na(AlSi₃O₈)
Na	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Na	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
Na	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Mg	Magnesium
Mg	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Al	Aluminium
Al	ⓘ Albite	Na(AlSi₃O₈)
Al	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Al	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
Al	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Si	Silicon
Si	ⓘ Albite	Na(AlSi₃O₈)
Si	ⓘ Beryl	Be₃Al₂(Si₆O₁₈)
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Si	ⓘ Garnet Group	X₃Z₂(SiO₄)₃
Si	ⓘ Albite var. Cleavelandite	Na(AlSi₃O₈)
Si	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
K	Potassium
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Montmorillonite	(Na,Ca)_0.33(Al,Mg)₂(Si₄O₁₀)(OH)₂ · nH₂O
Mn	Manganese
Mn	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Fe	Iron
Fe	ⓘ Schorl	NaFe₃²⁺Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)
Fe	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Nb	Niobium
Nb	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆
Ta	Tantalum
Ta	ⓘ Tantalite	(Mn,Fe)(Ta,Nb)₂O₆

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)

Rocks & Minerals 76:382

Meeves, H., et al (1966), Reconnaissance of beryllium-bearing pegmatite deposits in six western states, US Bur. Mines Info. Circ. 8298: 33 (Table A-1).

HANLEY, J. B., AND OTHERS, (1950), PEGMATITE INVESTIGATIONS IN COLORADO, WYOMING, AND UTAH, 1942-44, USGS PROF. PAPER 227, p. 107-108.

Hausel and Sutherland, (2000), WSGS Bull. 71, 268 p.

WGS BULL 50, (1966), p. 132, 220.

Hausel, W.D., (1993), Guide to the geology, mining districts, and ghost towns of the Medicine Bow Mountains and Snowy Range Scenic Byway: Geological Survey of Wyoming Public Information Circular No. 32, 53 p.

Other Databases

Link to USGS MRDS:	10009179

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Many Values pegmatite prospect, Albany County, Wyoming, USAiRegional Level TypesMany Values pegmatite prospectProspect Albany CountyCounty WyomingState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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