Kolwezite & sphaerocobaltite
description: <p style="text-align: justify;">LOCALITY: Unknown Mine, near Kolwezi, Katanga Province, Democratic Republic of the Congo <br /><br />3 1/4" across <br /><br />It is a fine example of these three cobalt-bearing species. Sphaerocobaltite is generally a mixture of cobalt carbonate and calcium carbonate in which 51% or more of the cations are cobalt cations.</p> <p style="text-align: justify;"> </p> <p style="text-align: justify;">Photo by Jeff Scovil</p>
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