• Acanthite with Nickeline
  • Acanthite with Nickeline
  • Acanthite with Nickeline
Sulphides, Sulphosalts and Arsenides

Acanthite with Nickeline

$1,000.00   €822  £710.00 approx.  

This specimen is priced in US dollars, all other prices are approximate.

ID: CC19980
This excellent and rare specimen of crystallised Acanthite with Nickeline is from Měděnec in the Ústí nad Labem Region of the Czech Republic; a copper mining district that worked a copper skarn deposit.  Skarn, a Scandinavian name for “rubbish”, describes where an igneous intrusion has contacted a carbonate horizon, hence causing metamorphism adjacent to the contact.  The Acanthite, a low temperature silver sulphide, forms intergrown, silvery lead-grey crystals which form a 1 cm thick and 4 cm long cylindrical band, folded around two sides of the specimen.  Individual Acanthite crystals are also dotted over the inner core of micro-Quartz encrusted chocolate-bronze Nickeline, a nickel arsenide.  An interesting mix of these silver and nickel species from Měděnec.

Details

Dimensions
2.5 × 3.8 × 2.0 cm
Categories
Sulphides, Sulphosalts and Arsenides
Locality
Medenec (Kupferberg), Klášterec nad Ohrí, Krušné Hory Mts, Ústí Region, Bohemia, Czech Republic

Minerals on Specimen

Minerals on specimen
Acanthite, Nickeline

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