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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Diopside from
Herbert Haven Prospect, Phippsburg, Sagadahoc County, Maine, USA


Locality type:Prospect
Classification
Species:Diopside
Formula:CaMgSi2O6
Confirmation
Validity:Confirmed
Confirmation Methods:Visually Identified
Associated Minerals Based on Photo Data:
Quartz1
Fluorapatite1
Grossular1
Data
Mineral Data:Click here to view Diopside data
Locality Data:Click here to view Herbert Haven Prospect, Phippsburg, Sagadahoc County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:1410121
Long-form Identifier:1:3:1410121:8
GUID (UUID V4):0
References
King, Van (n.d.) Personal communcation.
 
and/or  
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