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Carbonatites
February 2005 by Edgar B. Heylmun, PhD
Carbonatites are rocks that formed from molten calcite or dolomite. The thought of calcite being molten lava is difficult to accept, but it was confirmed when it poured out of a vent in Tanzania in 1960.The Bawl Mill
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Perhaps no one factor has caused more confusion in the search for ore than the attempt to use color as a guide to prospecting. Yet, there is a reason for every color seen in rocks, so it deserves to be noted.
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