
Defernite,
Ca6(CO3)2-x(SiO4)x(OH)7(Cl,OH)1-2x [x=0,5]
in black Hausmannite (2 mm)
Kombat mine, Namibia
Photo and Coll. G. Berset
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A T H E N A |

Defernite,
Ca6(CO3)2-x(SiO4)x(OH)7(Cl,OH)1-2x [x=0,5]
in black Hausmannite (2 mm)
Kombat mine, Namibia
Photo and Coll. G. Berset