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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Gummite from
Umra, Udaipur District, Udaipur Division, Rajasthan, India


Classification
Species:'Gummite' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gummite data
Locality Data:Click here to view Umra, Udaipur District, Udaipur Division, Rajasthan, India
Data Identifiers
Mindat Occurrence Record ID:839501
Long-form Identifier:1:3:839501:6
GUID (UUID V4):0
References
Tilak, V. V. S. S., & Aswathanarayana, U. (1963, January). Geochemical studies in the uranium prospect at Umra, Rajasthan. In Proceedings of the Indian Academy of Sciences-Section A (Vol. 57, No. 1, pp. 34-43). Springer India.
 
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