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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Vanmeersscheite from
Dunton Gem Quarry, Newry, Oxford County, Maine, USA


Locality type:Quarry
Classification
Species:Vanmeersscheite
Formula:U6+(UO2)3(PO4)2(OH)6 · 4H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Vanmeersscheite data
Locality Data:Click here to view Dunton Gem Quarry, Newry, Oxford County, Maine, USA
Data Identifiers
Mindat Occurrence Record ID:28335
Long-form Identifier:1:3:28335:7
GUID (UUID V4):0
References
King, Vandall T., Robinson, George W. (1991) What's New in Minerals? - Annual World Summary of Mineral Discoveries. The Mineralogical Record, 22 (5) 381-393
King, Vandall T., Foord, Eugene E. (1994) Mineralogy of Maine Vol. 1 - Descriptive mineralogy. Maine Geological Survey.
King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey.
 
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