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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Hexahydrite from
North Ballaird Bore No. 3, Balsalloch Farm, Lendalfoot, South Ayrshire, Scotland, UK


Locality type:Borehole
Classification
Species:Hexahydrite
Formula:Mg(H2O)6(SO4)
Comments:As a pale green, secondary growth, coating surface of an exposed drill core (serpentinite). Identified by X-ray diffraction. [R. I. Lawson (1980) pers. com.]
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Hexahydrite data
Locality Data:Click here to view North Ballaird Bore No. 3, Balsalloch Farm, Lendalfoot, South Ayrshire, Scotland, UK
Data Identifiers
Mindat Occurrence Record ID:1090309
Long-form Identifier:1:3:1090309:8
GUID (UUID V4):0
References
Livingstone, A., Macpherson, H. G. (1983) Fifth supplementary list of British minerals (Scottish) Mineralogical Magazine, 47 (342) 99-105 doi:10.1180/minmag.1983.047.342.23
 
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