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Hardscrabble claim (Granite mine), Toy District, Churchill Co., Nevada, USAi
Regional Level Types
Hardscrabble claim (Granite mine)Claim
Toy DistrictMining District
Churchill Co.County
NevadaState
USACountry

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Key
Lock Map
Latitude & Longitude (WGS84): 40° 0' 3'' North , 118° 41' 29'' West
Latitude & Longitude (decimal): 40.00101,-118.69154
GeoHash:G#: 9r5ee1gqy
USGS MRDS Record:10043754
Locality type:Claim
Köppen climate type:BWk : Cold desert climate
Nearest Settlements:
PlacePopulationDistance
Lovelock1,878 (2017)27.1km


Deposit type: W skarn


Scheelite occurs in tactite along a contact between calcareous hornfels and granodiorite, and in a tactite bed about one foot wide interstratified in metasediments. The contact strikes NW and dips steeply. It is intersected at right angles by the hornfels which strikes NE and dips 45 SE. The contact is explored by prospect pits and an adit; the bedded ore zone- is explored by a shaft and several small stopes.
Deposit: Scheelite occurs in tactite along a contact between calcareous hornfels and granodiorite, and in a tactite bed abo-ut one foot wide interstratified in metasediments. The contact- strikes NW and dips steeply. It is intersected at right angles by the hornfels which strikes NE and dips 45 se. The contact- is explored by prospect pits and an adit; the bedded ore zone- is explored by a shaft and several small stopes.

Deposit type: W skarn

Development: In 1941-42 the property was operated by h. E. Hall, jim hall, and john jergenson. In 1943-44 the mine was leased t-o j. D. Upton and joseph wyckoff who operated it As the lake t-ungsten mine. A small tonnage of ore was mined from the toy cl-aim, part of which was sent to the metals reserve stockpile at- winnemucca and part was milled at the hall mill at toy. The p-roperty was again mined for a short time in 1953-1954.

Ore(s): Contact Between Limestone & Pluton

Regions containing this locality

North America PlateTectonic Plate

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Standard Detailed Strunz Dana Chemical Elements

Commodity List

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


Mineral List


1 valid mineral.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

Detailed Mineral List:

Scheelite
Formula: Ca(WO4)
Reference: NBMG Bull 83 Geology and Mineral Deposits of Churchill County, Nevada; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

List of minerals arranged by Strunz 10th Edition classification

Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Scheelite7.GA.05Ca(WO4)

List of minerals arranged by Dana 8th Edition classification

Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Scheelite48.1.2.1Ca(WO4)

List of minerals for each chemical element

OOxygen
O ScheeliteCa(WO4)
CaCalcium
Ca ScheeliteCa(WO4)
WTungsten
W ScheeliteCa(WO4)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Miocene - Jurassic
5.333 - 201.3 Ma



ID: 2846804
Felsic phaneritic intrusive rocks

Age: Phanerozoic (5.333 - 201.3 Ma)

Description: Poorly dated felsic intrusions described as granitic rocks, granite porphyry, granodiorite, quartz monzonite, and many undivided plutonic rocks are included here. They crop out in every county except Elko and northern Washoe.

Comments: Original map source: Crafford, A.E.J., 2007, Geologic Map of Nevada: U.S. Geological Survey Data Series 249, 1 CD-ROM, 46 p., 1 plate; Scale 1:250,000.

Lithology: Major:{granitic,granodiorite,quartz monzonite}, Minor:{plutonic}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Triassic
201.3 - 251.902 Ma



ID: 3184762
Mesozoic sedimentary rocks

Age: Triassic (201.3 - 251.902 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Willden, Ronald, and Speed, R.C., (1974,) Geology and Mineral Deposits of Churchill County, Nevada: NBMG BULL 83.
Willden, Ronald, and Speed, R.C., (1974), Geology and Mineral Deposits of Churchill County, Nevada: NBMG Bull 83.
Hess, F. L., and Larsen, E.S., (1921), Contact-metamorphic Deposits of the United States: USGS Bull 725-d.P 289
Vanderburg, W.O., (1940), Reconnaissance of Mining Districts in Churchill County, Nevada, U.S. Bur Mines Inf. Circ. 7093.
NBMG Staff, (1985), NBMG Ofr 85-3.


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