Structure: Shear Zones

Alteration: Silicification, Argillization

Deposit: First production year: for silver about 1880 west willys group consist of 7 claims on both sides of an unnamed canyon 1/2 mi to 1 1/2 miles west of the east walker river, located in 1949. Development consists of seven adits ranging from 31 to 367 feet in length, several shallow shafts, pits; plus old workings of 7 adits and 3 small open cuts for silver on the west willys no. 7 or old washington claim. The old washington mine was mined for silver between 1880 & 1900.

Deposit type: Polymetallic veins

Geology: Radioactivity is associated with pods or thin layers of sulfide minerals in quartz veins, which cut a porphyritic quartz monzonite. Four zones of these veins are present on this group of claims. Individual quartz veins range from 1 inch to 1 1/2 feet thick. Anomalous radioactivity may bein part associated with copper oxides.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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

ⓘ Copper

ⓘ Silver

ⓘ Uranium

Mineral List

13 valid minerals.

Rock Types Recorded

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

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ Quartz-monzonite

Detailed Mineral List:

ⓘ Acanthite ?

Formula: Ag₂S

References:

Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Baryte

Formula: BaSO₄

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Chalcocite

Formula: Cu₂S

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Chrysocolla

Formula: Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1

References:

Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Epidote

Formula: (CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Galena

Formula: PbS

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Kasolite

Formula: Pb(UO₂)(SiO₄) · H₂O

References:

Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Muscovite var. Sericite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Pyrite

Formula: FeS₂

References:

Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology

ⓘ Quartz

Formula: SiO₂

References:

Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Torbernite

Formula: Cu(UO₂)₂(PO₄)₂ · 12H₂O

References:

Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

ⓘ Uraninite

Formula: UO₂

References:

Castor, Stephen B., Ferdock, Gregory C. (2004) Minerals of Nevada. Special Publication 31. Nevada Bureau of Mines and Geology

ⓘ Uraninite var. Pitchblende

Formula: UO₂

References:

(2005) Mineral Resources Data System (MRDS), US Geological Survey.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Chalcocite	2.BA.05	Cu₂S
ⓘ	Acanthite ?	2.BA.35	Ag₂S
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Galena	2.CD.10	PbS
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Quartz	4.DA.05	SiO₂
ⓘ	Uraninite var. Pitchblende	4.DL.05	UO₂
ⓘ		4.DL.05	UO₂
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Baryte	7.AD.35	BaSO₄
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Torbernite	8.EB.05	Cu(UO₂)₂(PO₄)₂ · 12H₂O
Group 9 - Silicates
ⓘ	Kasolite	9.AK.15	Pb(UO₂)(SiO₄) · H₂O
ⓘ	Epidote	9.BG.05a	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	var. Sericite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Chrysocolla	9.ED.20	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
H	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
H	ⓘ Kasolite	Pb(UO₂)(SiO₄) · H₂O
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Torbernite	Cu(UO₂)₂(PO₄)₂ · 12H₂O
H	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
O	Oxygen
O	ⓘ Baryte	BaSO₄
O	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
O	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
O	ⓘ Kasolite	Pb(UO₂)(SiO₄) · H₂O
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Uraninite var. Pitchblende	UO₂
O	ⓘ Quartz	SiO₂
O	ⓘ Torbernite	Cu(UO₂)₂(PO₄)₂ · 12H₂O
O	ⓘ Uraninite	UO₂
O	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	Aluminium
Al	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Al	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	Silicon
Si	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Si	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Si	ⓘ Kasolite	Pb(UO₂)(SiO₄) · H₂O
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Quartz	SiO₂
Si	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
P	Phosphorus
P	ⓘ Torbernite	Cu(UO₂)₂(PO₄)₂ · 12H₂O
S	Sulfur
S	ⓘ Acanthite	Ag₂S
S	ⓘ Baryte	BaSO₄
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Chalcocite	Cu₂S
S	ⓘ Galena	PbS
S	ⓘ Pyrite	FeS₂
K	Potassium
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Muscovite var. Sericite	KAl₂(AlSi₃O₁₀)(OH)₂
Ca	Calcium
Ca	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	Iron
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Epidote	(CaCa)(AlAlFe³⁺)O[Si₂O₇][SiO₄](OH)
Fe	ⓘ Pyrite	FeS₂
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Cu	ⓘ Chalcocite	Cu₂S
Cu	ⓘ Chrysocolla	Cu_2-xAl_x(H_2-xSi₂O₅)(OH)₄ · nH₂O, x < 1
Cu	ⓘ Torbernite	Cu(UO₂)₂(PO₄)₂ · 12H₂O
Ag	Silver
Ag	ⓘ Acanthite	Ag₂S
Ba	Barium
Ba	ⓘ Baryte	BaSO₄
Pb	Lead
Pb	ⓘ Galena	PbS
Pb	ⓘ Kasolite	Pb(UO₂)(SiO₄) · H₂O
U	Uranium
U	ⓘ Kasolite	Pb(UO₂)(SiO₄) · H₂O
U	ⓘ Uraninite var. Pitchblende	UO₂
U	ⓘ Torbernite	Cu(UO₂)₂(PO₄)₂ · 12H₂O
U	ⓘ Uraninite	UO₂

Other Databases

Link to USGS MRDS:	10044901

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

Basin and Range BasinsBasin
Havallah BasinBasin
Shoofly-Olds Ferry DomainDomain
West Nevada Permian-Triassic BasinBasin

USA

Sierra NevadaMountain Range

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References

Staatz & Bauer, (1953), Uranium in the East Walker River Area, Lyon County, Nevada; USGS Bull. 988-c

Staatz & Bauer, (1954), Washington District; in Radioactive Deposits of Nevada; USGS Bull. 1009-c

Moore, (1969), Geology and Mineral Deposits of Lyon, Douglas, & Ormsby Counties, Nevada; NBMG Bull. 75

Garside, (1973), Radioactive Mineral Occurrences in Nevada; NBMG Bull. 81

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West Willys claim, Washington Mining District, Lyon County, Nevada, USAiRegional Level TypesWest Willys claimClaim Washington Mining DistrictMining District Lyon CountyCounty NevadaState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

Select Mineral List Type

Commodity List

Mineral List

Rock Types Recorded

Select Rock List Type

Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Databases

Other Regions, Features and Areas containing this locality

References

West Willys claim, Washington Mining District, Lyon County, Nevada, USA i
Regional Level Types
West Willys claim Claim
Washington Mining District Mining District
Lyon County County
Nevada State
USA Country