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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Glaucophane from
California State Gem Mine, Santa Rita Peak, San Benito County, California, USA


06151670017272011353276.jpg
Glaucophane

California State Gem Mine, Santa Rita Peak, San Benito County, California, USA
02764640017361124647485.jpg
Glaucophane, etc.

California State Gem Mine, Santa Rita Peak, San Benito County, California, USA
06151670017272011353276.jpg
Glaucophane

California State Gem Mine, Santa Rita Peak, San Benito County, California, USA
08277140017272011552270.jpg
Glaucophane, etc.

California State Gem Mine, Santa Rita Peak, San Benito County, California, USA
06151670017272011353276.jpg
Glaucophane

California State Gem Mine, Santa Rita Peak, San Benito County, California, USA
08277140017272011552270.jpg
Glaucophane, etc.

California State Gem Mine, Santa Rita Peak, San Benito County, California, USA
Locality type:Mine
Classification
Species:Glaucophane
Formula:◻Na2(Mg3Al2)Si8O22(OH)2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Natrolite7
Benitoite6
Neptunite6
Joaquinite-(Ce)5
Data
Mineral Data:Click here to view Glaucophane data
Locality Data:Click here to view California State Gem Mine, Santa Rita Peak, San Benito County, California, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:60308
Long-form Identifier:1:3:60308:3
GUID (UUID V4):0
Nearest other occurrences of Glaucophane
0.6km (0.4 miles) ⓘClear Creek area benitoite occurrence, Santa Rita Peak, San Benito County, California, USA
31.9km (19.8 miles) ⓘLlanada Copper Mine, Panoche, San Benito County, California, USA
42.2km (26.2 miles) ⓘPanoche Hills, Fresno County, California, USA
47.4km (29.5 miles) ⓘUnnamed Lawsonite-Glaucophane occurrence [1], Glaucophane Ridge, San Benito County, California, USA
89.7km (55.7 miles) ⓘHawkins Mine (Hawkins Ranch), Messic Mountain, Stayton Mining District (McLeod Mining District; Panoche Mining District), San Benito County, California, USA
References
Louderback, George Davis & Walter C. Blasdale (1909), Benitoite, its mineralogy, paragenesis and mode of occurrence: University of California, Department of Geological Sciences Bulletin: 5: 360
Murdoch, Joseph; Webb, Robert Wallace (1966) Minerals of California, Centennial Volume (1866-1966) - California Division of Mines and Geology, Bulletin 189. California Division of Mines and Geology. 559 pp.
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
 
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