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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Pine Grove occurrence, Cedar Mountain, Cedar Mountain Mining District, Alameda County, California, USAi
Regional Level Types
Pine Grove occurrenceOccurrence
Cedar MountainMountain
Cedar Mountain Mining DistrictMining District
Alameda CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
37° 33' 19'' North , 121° 36' 47'' West
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Livermore88,126 (2017)19.6km
Sunol913 (2011)24.6km
Pleasanton79,510 (2017)25.9km
Mountain House9,675 (2011)26.1km
Tracy87,075 (2017)26.3km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Livermore Valley LithophilesLivermore, California20km
Santa Clara Valley Gem & Mineral SocietySan Jose, California35km
Mineral & Gem Society of Castro ValleyHayward, California43km
East Bay Mineral and Lapidary ClubHayward, California44km
Peninsula Gem & Geology Society, Inc.Los Altos, California48km
Mindat Locality ID:
73406
Long-form identifier:
mindat:1:2:73406:7
GUID (UUID V4):
0


A Cr occurrence located in the SE¼NE¼SW¼ sec. 26, T4S, R3E, MDM, 0.9 km (0.5 mile; 2,800 feet) SW of Cedar Mountain, along the crest of Cedar Mountain Ridge, on private land. Owned by Mrs. H. V. Mendenhall. MRDS database stated accuracy for this location is 500 meters.

Local rocks include ultramafic rocks, chiefly Mesozoic, unit 3 (Coast Ranges and Western Klamath Mountains).

No production was recorded.

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


1 valid mineral.

Detailed Mineral List:

Chromite
Formula: Fe2+Cr3+2O4

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4

List of minerals for each chemical element

OOxygen
O ChromiteFe2+Cr23+O4
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe ChromiteFe2+Cr23+O4

Other Databases

Link to USGS MRDS:10027973

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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

 
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