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Glaucophane from
Berkeley Country Club, El Cerrito, Contra Costa County, California, USA


Classification
Species:Glaucophane
Formula:◻Na2(Mg3Al2)Si8O22(OH)2
Comments:Occurs as glaucophane schist.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Rutile
Titanite
Data
Mineral Data:Click here to view Glaucophane data
Locality Data:Click here to view Berkeley Country Club, El Cerrito, Contra Costa County, California, USA
Data Identifiers
Mindat Occurrence Record ID:649145
Long-form Identifier:1:3:649145:1
GUID (UUID V4):0
Nearest other occurrences of Glaucophane
16.2km (10.0 miles) ⓘCalifornia Point (Point Munroe), Tiburon Peninsula, Marin County, California, USA
17.4km (10.8 miles) ⓘReed Station, Tiburon Peninsula, Marin County, California, USA
33.6km (20.9 miles) ⓘTurtle Rock Quarry, Mount Diablo (Mt Diablo), Clayton, Contra Costa County, California, USA
38.1km (23.7 miles) ⓘNicasio, Marin County, California, USA
65.8km (40.9 miles) ⓘMelitta, Santa Rosa, Sonoma County, California, USA
67.5km (41.9 miles) ⓘCamp 9 deposit (Camp 9 Merchant; Cummings), Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
68.9km (42.8 miles) ⓘCalaveras Valley, Santa Clara County, California, USA
69.9km (43.5 miles) ⓘValley Ford, Sonoma County, California, USA
70.3km (43.7 miles) ⓘEbabias Creek, Valley Ford, Sonoma County, California, USA
70.5km (43.8 miles) ⓘDewhirst Mine, Mendenhall Springs, Livermore Mining District (Tesla District), Alameda County, California, USA
References
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 325.
 
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