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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Topaz from
Globe Mine, Springfield, Sullivan County, New Hampshire, USA


Locality type:Mine
Classification
Species:Topaz
Formula:Al2(SiO4)(F,OH)2
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Topaz data
Locality Data:Click here to view Globe Mine, Springfield, Sullivan County, New Hampshire, USA
Data Identifiers
Mindat Occurrence Record ID:97182
Long-form Identifier:1:3:97182:3
GUID (UUID V4):0
References
Nicolay & Stone (1967) Rocks & Minerals: A Guide For Collectors of Eastern United States
 
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