Derriksite With Malachite

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Good sized crystals of the very rare copper-uranium-selenite Derriksite on a bed of Malachite. The mineral occurs rarely as good visible, bottle green crystals. The matrix is selenium-rich Digenite. This specimen was recovered when the uranium dump of Musonoi was sent to the Kolwezi concentrator in the early 1990's. Musonoi is the type and only known locality for Derriksite where it is known as the rarest of the selenites.