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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.Court: Kennecott Eagle Minerals Application Complete
The Michigan Court of Appeals overturned a lower court ruling that had blocked the state Department of Environmental Quality from deciding whether to issue a permit for a nickel and copper mine in the Upper Peninsula.
Gold in Oregon
At least 6 million ounces of gold have been produced in Oregon since 1859. Since there are no accurate records of production prior to 1904, it is obvious that total gold production was considerably higher than that which has been recorded.
Company Notes
• Newmont Mining Corp.
• Kinross Gold Corp.
• TVX Gold Corp.
Calcite and Limestone
The other distinguishing feature of calcite has to do with its chemistry. Geologists sometimes take a small bottle of dilute hydrochloric acid out into the field with them because calcite reacts with acids to make a bubbly foam.
Copper Price Keeps Canadian Miners Busy
The Canadian copper industry is benefiting from the current high metal prices, and exploration activity should remain high over the coming year as new mines are developed and continuous improvement programs increase efficiencies at existing operations.
Nebraska Couple Finds Big Nugget in Arizona
Friends of Don and Marlene Doran often tease them about their hobby of searching for unique rocks. Now they are the ones laughing.
The Bawl Mill
- Sun continues to set on solar
- Obamacare ailing
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