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Putnisite

Type Locality
Polar Bear peninsula (Lake Cowan), Norseman, Dundas Shire, Western Australia, Australia
Mineral Data
SrCa4Cr3+8(CO3)8SO4(OH)16·23H2O
Physical Properties
Streak: 
Pink
Hardness: 
1.0 - 2.0
Tenacity: 
brittle