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Copper-silver 'half-breed'

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Colour:
Copper red and silver white
Lustre:
Metallic
Name:
Derived from "Half-breed", 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 crystallized examples of both minerals, often in epitaxy. Copper on silver is more rare than silver on copper. Although such silver-copper nuggets are more common, many on the market are produced in stamp mills or ball mills.


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Physical Properties of Copper-silver 'half-breed'Hide

Metallic
Transparency:
Opaque
Colour:
Copper red and silver white
Fracture:
Hackly

Common AssociatesHide

Associated Minerals Based on Photo Data:
Copper2 photos of Copper-silver 'half-breed' associated with Copper on mindat.org.
Silver2 photos of Copper-silver 'half-breed' associated with Silver on mindat.org.

Other InformationHide

Health Risks:
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 Copper-silver 'half-breed'Hide

Mineral and/or Locality  
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