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
Colorado Group, Spring Mountain Mining District, Lemhi County, Idaho, USA


Classification
Species:'Fayalite-Forsterite Series' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Fayalite-Forsterite Series data
Locality Data:Click here to view Colorado Group, Spring Mountain Mining District, Lemhi County, Idaho, USA
Data Identifiers
Mindat Occurrence Record ID:446019
Long-form Identifier:1:3:446019:0
GUID (UUID V4):0
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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