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Unnamed Gypsum occurrence [1], Alcalde Hills, Coalinga, Fresno County, California, USAi
Regional Level Types
Unnamed Gypsum occurrence [1]Occurrence
Alcalde HillsGroup of Hills
CoalingaArea
Fresno CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
36° 10' 31'' North , 120° 25' 31'' West
Latitude & Longitude (decimal):
36.17528,-120.42528
GRN:
N25W69
Type:
Occurrence
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Coalinga16,564 (2017)7.1km
Huron6,836 (2017)29.1km
Avenal13,301 (2017)32.7km
Three Rocks246 (2011)36.5km
Cantua Creek466 (2011)37.5km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Coalinga Rockhound SocietyCoalinga, California7km
Mindat Locality ID:
76541
Long-form identifier:
mindat:1:2:76541:0
GUID (UUID V4):
0


A gypsum occurrence located in sec. 22, T20S, R14E, MDM, 7.1 km (4.4 miles) WNW of Coalinga. MRDS database stated accuracy for this location is 100 meters.

Local rocks include Eocene marine rocks.

Workings include unspecified underground openings.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


1 valid mineral.

Detailed Mineral List:

ⓘ Gypsum
Formula: CaSO4 · 2H2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘGypsum7.CD.40CaSO4 · 2H2O

List of minerals for each chemical element

HHydrogen
Hⓘ GypsumCaSO4 · 2H2O
OOxygen
Oⓘ GypsumCaSO4 · 2H2O
SSulfur
Sⓘ GypsumCaSO4 · 2H2O
CaCalcium
Caⓘ GypsumCaSO4 · 2H2O

Other Databases

Link to USGS MRDS:10139505

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

(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060190054
Hess, Frank L. (1910) A reconnaissance of the gypsum deposits of California, with a note on errors I the chemical analysis of gypsum by George Steiger: USGS Bulletin 413, 37 pp.: 11.
Hess, Frank L. (1920), Gypsum deposits of California, in Stone, R.W., Gypsum deposits of the United States: USGS Bulletin 697: 61-62.
Southern Pacific Company (1964b) Minerals for Industry, Summary of Geological Survey 1955 - 1961: Vol III - 242 pp., Southern Pacific Co., San Francisco, CA 94105: 22.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
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