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Contra Costa Co., California, USA
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Mineral List

Mineral list contains entries from the region specified including sub-localities
Actinolite
Albite
Alum-(K)
Alunogen
'Anauxite'
Anthophyllite
'Asbestos'
Baryte
Bornite
Calcite
Chalcopyrite
Chromite
Cinnabar
'Clay'
Clinochlore
'Clinoptilolite'
Copiapite
Coquimbite
Cristobalite
'Crossite'
Diopside
var: Diallage
Enstatite
Epsomite
Fluorite
Gold
Halotrichite
'Heulandite'
Hypercinnabar (TL)
Kornelite
Lawsonite
Marcasite
Melanterite
Metacinnabar
Millerite
Morenosite
Muscovite
var: Illite

Opal
var: Diatomite

'Psilomelane'
'Pumice'
'Pumpellyite'
Pyrite
Pyrolusite
Quartz
'Roméite Group
var: Stibiconite'

Römerite
Schuetteite
'Serpentine Group'
Siderotil
'Silica'
Stibnite
'Stilbite'
Titanite
Tremolite
Valentinite
Voltaite


57 entries listed. 40 valid minerals. 1 type locality (valid mineral).

Localities in this Region

USA
USA

The above list 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

Goodyear, Watson Andrews (1890), Alameda, Colusa, Contra Costa, Lake, Marin, Mendocino, Napa, Yolo Counties: California Mining Bureau. Report 10: 91-95, 153-164, 165, 227-271, 299, 314, 322, 349-363, 793-794.

Watts, Wm. L. (1893), Alameda, Colusa, Del Norte, Fresno, Glenn, Humboldt, Marin, Mendocino, Merced, Placer, Sacramento, Santa Clara, San Joaquin, Sonoma, Stanislaus, Sutter, Kern, Lake, Contra Costa, Tehama, Tulare Counties California Mining Bureau. Report 11: 121-138, 179-199, 210-240, 249-258, 319-322, 334-336, 374-375, 394, 453-479, 485-492.

Lawson, Andrew Cowper (1914), Description of the San Francisco district: Tamalpais, San Francisco, Concord, San Mateo, and Hayward quadrangles: USGS Geol. Atlas, San Francisco folio (No. 193), 24 pp.

Huguenin, Emile & W.O. Castello (1921), Alameda, Contra Costa, San Francisco, San Mateo, Santa Clara, Santa Cruz Counties: California Journal of Mines and Geology; California Mining Bureau. (Report 17): 17: 17-42, 48-67, 163-165, 167-241.

Laizure, Clyde McK (1927), Contra Costa, Solano Counties: California Journal of Mines and Geology, California Mining Bureau (Report 23): 23: 2-31, 203-213.

Ross, C.P. (1940a) Quicksilver deposits of the Mount Diablo region, Contra Costa County, California. USGS Bulletin 922-B, 54 pp.

Davis, Fenelon Francis & J.W. Vernon (1951), Mines and mineral resources of Contra Costa County, California: California Journal of Mines and Geology: 47: 561-618.

Davis, Fenelon Francis and H.B. Goldman (1958) Mines and mineral resources of Contra Costa County. California Journal of Mines and Geology: 54: 501-583.

Pampeyan, Earl Haig (1963), Geology and mineral deposits of Mount Diablo, Contra Costa County, California: California Division Mines & Geology, Special Report 80, 31 pp.

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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