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Oursinite

Type Locality
Shinkolobwe Mine (Kasolo Mine), Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)
Mineral Data
(Co,Mg)(UO2)2[HSiO4]2·6H2O
Strunz: 
9.AK.10
Physical Properties
Hardness: 
3.0 - 3.5