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Copper-silver 'half-breed'

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About Copper-silver 'half-breed'Hide

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.


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

Localities for Copper-silver 'half-breed'Hide

β“˜ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
USA
 
  • Michigan
https://www.mindat.org/photo-533745.html
Mineral and/or Locality  
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