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Opal from
Dean Mine, Mountain Top, French Creek Mining District, Calaveras County, California, USA


Locality type:Mine
Classification
Species:Opal
Formula:SiO2 · nH2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Opal data
Locality Data:Click here to view Dean Mine, Mountain Top, French Creek Mining District, Calaveras County, California, USA
Data Identifiers
Mindat Occurrence Record ID:901386
Long-form Identifier:1:3:901386:5
GUID (UUID V4):0
Nearest other occurrences of Opal
8.8km (5.5 miles) ⓘStanislaus Mine, Carson Hill Gold Mining Company Mines (Carson Hill Mines), Melones, Carson Hill Mining District (Melones Mining District), Calaveras County, California, USA
10.9km (6.8 miles) ⓘWhite Rock Mine, Chinese Station, Tuolumne County, California, USA
28.0km (17.4 miles) ⓘUnnamed Diatomite occurrence (1), Cooperstown, Stanislaus County, California, USA
31.4km (19.5 miles) ⓘSampson Lode prospect, Groveland, Big Oak Flat Mining District, East Belt, Tuolumne County, California, USA
32.4km (20.2 miles) ⓘChili Gulch occurrences, Chili Gulch (Chile Gulch ?), Mokelumne Hill, Mokelumne Hill Mining District, East Belt, Calaveras County, California, USA
33.0km (20.5 miles) ⓘHooten Ranch deposit, Toyon, Pardee Mining District, Calaveras County, California, USA
36.9km (22.9 miles) ⓘGillam Mine, Camp Pardee, Pardee Mining District, Calaveras County, California, USA
38.2km (23.7 miles) ⓘRough Diamond Mine (Rough Diamond Placer Mine; Rough Diamond Crystal Mine), Chili Gulch (Chile Gulch ?), Mokelumne Hill, Mokelumne Hill Mining District, East Belt, Calaveras County, California, USA
38.2km (23.8 miles) ⓘGreen Mountain Mine (Calaveras Crystal mine), Chili Gulch (Chile Gulch ?), Mokelumne Hill, Mokelumne Hill Mining District, East Belt, Calaveras County, California, USA
40.2km (25.0 miles) ⓘHexter Placer Mine, Mokelumne Hill, Mokelumne Hill Mining District, East Belt, Calaveras County, California, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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