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Article: Cobalt minerals of the Katanga Crescent, Congo.
- Article from:
- The Mineralogical Record
- Article date:
- July 1, 1999
- Author:
CopyrightCOPYRIGHT 1999 The Mineralogical, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Cobalt, copper and uranium are the important ore metals in a large number of deposits within and near the "Katanga Crescent." Many beautiful cobalt-containing minerals have come from this famous area, including carrollite, cattierite, siegenite, comblainite, heterogenite, kolwezite, oursinite, sphaerocobaltite, and brilliant pink cobaltoan calcite and dolomite.
HISTORY OF COBALT
Unlike copper, which has been known for millennia, metallic cobalt was not definitely isolated until the 18th century. The coloring properties of its oxides have nonetheless been known since the most ancient times, particularly in the Middle East, Egypt and China. Materials as ...