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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Big Geyser property, The Geysers, West Mayacmas Mining District, Sonoma County, California, USAi
Regional Level Types
Big Geyser propertyProperty
The GeysersGeothermal Field
West Mayacmas Mining DistrictMining District
Sonoma CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
38° North , 122° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
GRN:
N26W70
Type:
Property
Köppen climate type:
Csb : Warm-summer Mediterranean climate
Mindat Locality ID:
211772
Long-form identifier:
mindat:1:2:211772:3
GUID (UUID V4):
0


An occurrence located at the eastern edge of the overall property, about 50 yards (47 meters) N of Big Sulphur Creek.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


1 valid mineral.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘMetastibnite2.DB.05Sb2S3

List of minerals for each chemical element

SSulfur
Sⓘ MetastibniteSb2S3
SbAntimony
Sbⓘ MetastibniteSb2S3

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

Brookins, D. G. (1970) Metastibnite from The Geysers, Sonoma County, California. American Mineralogist, 55 (11-12). 2103-2104
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
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