Marthozite & Demesmaekerite. Two sharp crystals of marthozite are found in a exposed vug of digenite along with a spray of demesmaekerite. The largest marthozite crystal is 0.6 cm across. The sprays of demesmaekerite can be seen above the marthozite crystals in the lower left photo. 4.5 x 4.2 x 2.5 cm. Musonoi Extension, Katanga Province, Dem. Republic of the Congo

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