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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Fish Creek Mountains, San Diego County, California, USAi
Regional Level Types
Fish Creek MountainsMountain Range
San Diego CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
33° North , 116° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~89km
GRN:
N23W70
Type:
Mountain Range
Köppen climate type:
Csa : Hot-summer Mediterranean climate
Mindat Locality ID:
215802
Long-form identifier:
mindat:1:2:215802:3
GUID (UUID V4):
0


Gypsum deposits occur in the SE¼ sec. 25, in the NE¼NE¼ sec. 36, T13S, R8E, SBM. These deposits continue westward from Imperial County.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

2 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘCelestine7.AD.35SrSO4
ⓘGypsum7.CD.40CaSO4 · 2H2O
Unclassified
ⓘ'Stilbite Subgroup'-M6-7[Al8-9Si27-28O72] · nH2O

List of minerals for each chemical element

HHydrogen
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
OOxygen
Oⓘ CelestineSrSO4
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
AlAluminium
Alⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
SiSilicon
Siⓘ Stilbite SubgroupM6-7[Al8-9Si27-28O72] · nH2O
SSulfur
Sⓘ CelestineSrSO4
Sⓘ GypsumCaSO4 · 2H2O
CaCalcium
Caⓘ GypsumCaSO4 · 2H2O
SrStrontium
Srⓘ CelestineSrSO4

Localities in this Region

USA

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America Plate
Pacific 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

Weber, F. Harold Jr. (1963) Geology and mineral resources of San Diego County, California. County Report 3. California Division of Mines and Geology pages 167, 169
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
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