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ATHENA

MINERALOGY

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Mineral: STURMANITE
Formula: Ca6Fe3+2(SO4)2,5[B(OH)4](OH)12(H2O)25
Crystal System: Hexagonal
Group: Ettringite group
IMA Number: 1981-011
References: CM 21 (1983), 705; HB5 (2003); ZK 233 (2018), 247
Type Locality: Kuruman, Cape Province, South Africa

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