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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Fayalite-Forsterite Series from
Black Point summit, Camp Sierra, Fresno County, California, USA


Classification
Species:'Fayalite-Forsterite Series' (not an IMA approved species)
Comments:Occurs as phenocrysts associated with phenocrysts of augite in trachybasalts.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Fayalite-Forsterite Series data
Locality Data:Click here to view Black Point summit, Camp Sierra, Fresno County, California, USA
Data Identifiers
Mindat Occurrence Record ID:649690
Long-form Identifier:1:3:649690:6
GUID (UUID V4):0
Nearest other occurrences of Fayalite-Forsterite Series
9.4km (5.8 miles) ⓘChinese Peak, Lakeshore, Fresno County, California, USA
14.2km (8.8 miles) ⓘRed Lake, Fresno County, California, USA
40.5km (25.2 miles) ⓘLong Ledge No. 1 Mine (Wood's Mine; Grizzly Bear Mine; Wood's Grizzly Bear Mine), Long Ledge group, Hog Mountain, Fresno County, California, USA
41.1km (25.5 miles) ⓘLong Ledge No. 3 (Rose lease; Black Bear Mine), Long Ledge group, Hog Mountain, Fresno County, California, USA
61.4km (38.2 miles) ⓘLemont group, June Lake, Mono County, California, USA
References
Hamilton, Warren B., Neuerburg, George J. (1956) Olivine-sanidine trachybasalt from the Sierra Nevada, California. American Mineralogist, 41 (11-12) 851-873
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
 
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