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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Para-alumohydrocalcite from
Chipping Sodbury Quarry (Hampstead Farm Quarry), Sodbury, South Gloucestershire, Gloucestershire, England, UK


Locality type:Quarry
Classification
Species:Para-alumohydrocalcite
Formula:CaAl2(CO3)2(OH)4 · 6H2O
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Para-alumohydrocalcite data
Locality Data:Click here to view Chipping Sodbury Quarry (Hampstead Farm Quarry), Sodbury, South Gloucestershire, Gloucestershire, England, UK
Data Identifiers
Mindat Occurrence Record ID:17075
Long-form Identifier:1:3:17075:2
GUID (UUID V4):0
References
Alabaster, C. (1990) New Occurrences of Secondary Aluminium Minerals from the Bristol District. Journal of the Russell Society, 3 (2) 49-60
Ryback, G. (1992). Eighth supplementary list of British Isles minerals. Adv. Sci, 875, 7.
 
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