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A beautiful and large plate of dioptase from the Congo – one of the world’s finest locations for the species. This piece boasts an impressive size, good color, and is in very nice condition. From the esteemed collection of Uli Bahmann of South Africa.
Tantara Mine, DR Congo — compact Haut-Katanga locality yielding emerald to blue-green dioptase with plancheite and shattuckite; copper-silicate pseudomorphs al…
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