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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Apatite from
Unnamed Albite pegmatite, Santa Catalina Island, Los Angeles County, California, USA


Locality type:Pegmatite
Classification
Species:'Apatite' (not an IMA approved species)
Formula:Ca5(PO4)3A
Comments:Occurs as crystals up to 6 x 75 mm.
Confirmation
Validity:Believed Valid
Associated Minerals:
Associates:Albite
Data
Mineral Data:Click here to view Apatite data
Locality Data:Click here to view Unnamed Albite pegmatite, Santa Catalina Island, Los Angeles County, California, USA
Data Identifiers
Mindat Occurrence Record ID:683409
Long-form Identifier:1:3:683409:8
GUID (UUID V4):0
References
Bailey, Edgar H. (1941a), Mineralogy, petrology and geology of Santa Catalina Island, California: Unpublished Ph.D. dissertation, Stanford University: 52
Pemberton, H. Earl (1983) Minerals of California. Van Nostrand Reinhold Company Inc.
 
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