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Keweenaw Co., Michigan, USA
© Simone Citon
|Colour:||Copper red and silver ...|
|Name:||Derived from "Halfbreed", which is a derogatory American slang for a person whose parents are Caucasian and Native American. The general insolubility of silver and copper produces specimens containing intermixed white native silver and red native copper|
A physical mixture of native silver and native copper (they have only limited miscibility at low-moderate temperatures, unlike silver and gold; see electrum). The insolubility of Copper and Silver produces specimens containing good examples of both minerals, often in epitaxy. Copper on Silver is more rare than Silver on Copper. Although halfbreed nuggets are more common, many on the market are produced in stamp mills or ball mills
Classification of Halfbreed
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Physical Properties of Halfbreed
|Colour:||Copper red and silver white|
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
Internet Links for Halfbreed
Localities for Halfbreed
The map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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Locality Updated: First Chance , Calaveras Co., California, USAFrom Chester S. Lemanski, Jr., 21st Sep 2014 18:05:24