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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Brianroulstonite from
Clover Hill deposit (Denison-Potacan mine; Potacan mine; Cassidy Potash mine), Salt Springs evaporite deposit, Hammond Parish, Kings Co., New Brunswick, Canada


Locality type:Deposit
Classification
Species:Brianroulstonite
Formula:Ca3[B5O6(OH)6](OH)Cl2 · 8H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Brianroulstonite data
Locality Data:Click here to view Clover Hill deposit (Denison-Potacan mine; Potacan mine; Cassidy Potash mine), Salt Springs evaporite deposit, Hammond Parish, Kings Co., New Brunswick, Canada
Data Identifiers
Mindat Occurrence Record ID:817474
Long-form Identifier:1:3:817474:1
GUID (UUID V4):0
Nearest other occurrences of Brianroulstonite
24.8km (15.4 miles) ⓘPotash Corporation of Saskatchewan Mine (PCS Mine; Potash Corporation of America Mine), Penobsquis, Cardwell Parish, Kings Co., New Brunswick, Canada
References
Burns, P. C., Hawthorne, Franck C., Stirling, J. A. R. (1992) Trembathite, (Mg,Fe)3B7O13Cl, a new borate mineral from the Salt Springs potash deposit, Sussex, New Brunswick. The Canadian Mineralogist, 30 (2) 445-448
 
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