Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Superior Silica Quarry, Oro Grande, Oro Grande Mining District, San Bernardino County, California, USAi
Regional Level Types
Superior Silica QuarryQuarry
Oro Grande- not defined -
Oro Grande Mining DistrictMining District
San Bernardino CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
34° 37' 0'' North , 117° 17' 51'' West
Latitude & Longitude (decimal):
34.61694,-117.29778
GeoHash:
G#: 9qhsfvf67
GRN:
N24W69
Type:
Quarry
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Victorville122,225 (2017)9.0km
Adelanto33,166 (2017)10.9km
Spring Valley Lake8,220 (2017)14.0km
Mountain View Acres3,130 (2018)14.2km
Silver Lakes5,623 (2017)14.8km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Victor Valley Gem and Mineral ClubVictorville, California9km
Mojave Desert Gem & Mineral SocietyBarstow, California40km
Mindat Locality ID:
89625
Long-form identifier:
mindat:1:2:89625:1
GUID (UUID V4):
0


A former silica deposit/quarry located in sec. 16, T6N, R4W, SBM, 3.8 km (2.4 miles) ENE of Oro Grande (coordinates of record), along the S side of Oro Grande Canyon (NW margin of Quartzite Mountain). Owned & operated by the Calmat Co. - Cement Division (100%), California (1990). MRDS database stated accuracy for this location is 10 meters.

Local rocks include Carboniferous marine rocks, unit 1 (Western Mojave Desert).

Workings include unspecified surface openings (the topo map reflects 1 quarry symbol labeled "quarry" at this point.

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.


Mineral List


Gallery:

List of minerals arranged by Strunz 10th Edition classification

Unclassified
ⓘ'Silica'-

List of minerals for each chemical element

Other Databases

Link to USGS MRDS:10116391

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060713016
California Division of Mines and Geology (1990), Mines and mineral producers active in California (1988-89), California Department of Conservation, Division of Mines and Geology, Special Publication 103.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
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