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ATHENA MINERALOGY |
Mineral: | STURMANITE |
Formula: | Ca6(Fe3+,Al,Mn2+)2(SO4)2[B(OH)4](OH)12 · 25H2O |
Crystal System: | Hexagonal |
Strunz Nr: | 6/D.13-50 |
Group: | Ettringite group |
References: | CM 21 (1983), 705; HB5 (2003) |
Type Locality: | Kuruman, Cape Province, South Africa |
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