• Acanthite
  • Acanthite
Sulphides, Sulphosalts and Arsenides

Acanthite

$650.00   €545  £470.00 approx.  

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

ID: CC19979
A rare specimen of crystallised Acanthite from Měděnec in the Ústí nad Labem Region of the Czech Republic.  This was a copper mining district and worked a copper skarn deposit.  A skarn occurs where an igneous intrusion contacts a carbonate sequence and hence causes metamorphic alteration adjacent to the contact.  A whole suite of metallic elements is present in this skarn, one of which is silver.  Acanthite is the low temperature form of silver sulphide and in this specimen forms crude blocky and somewhat rounded lead-grey crystals to about 7 mm across.  These are associated with smaller, silver-grey druses of possible granular Native Silver or Silver-rich Acanthite.  An interesting and rarely seen species from this old locality.

Details

Dimensions
2.7 × 3.7 × 2.2 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

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