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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Lake Anza Mine, Cragmont, Berkeley, Alameda County, California, USAi
Regional Level Types
Lake Anza MineMine
CragmontNeighborhood
BerkeleyCity
Alameda CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
37° 53' 53'' North , 122° 15' 24'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Kensington5,077 (2011)2.5km
Berkeley120,972 (2017)3.3km
Albany19,735 (2017)3.8km
El Cerrito23,549 (2011)5.2km
Orinda19,279 (2017)7.1km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Northern California Geological SocietyOrinda, California7km
San Francisco Gem and Mineral Society, Inc.San Francisco, California20km
Contra Costa Mineral & Gem SocietyConcord, California22km
Vallejo Gem & Mineral SocietyVallejo, California23km
East Bay Mineral and Lapidary ClubHayward, California29km
Mindat Locality ID:
73390
Long-form identifier:
mindat:1:2:73390:7
GUID (UUID V4):
0


A Hg occurrence located in sec. 25, T1N, R4W, MDM, 3.2 km (2.0 miles) NNE of Berkeley center, along the Contra Costa County line. MRDS database stated accuracy for this location is 1,000 meters.

Local rocks include Plio-Pleistocene and Pliocene loosely consolidated deposits.

List of minerals for each chemical element

Other Databases

Link to USGS MRDS:10162741

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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