• Umangite with Malachite
  • Umangite with Malachite
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Umangite with Malachite

ID: CC14267
This rare copper selenide, Umangite, is from its type locality at the Tumiñico mine at Sierra de Cacho in north western Argentina.  Fine-grained granular crystals of silvery-blue-grey Umangite are scattered amongst cryptocrystalline layers and smudges of bluish-green Malachite in a Calcite rich carbonate veinstone.  Priced at just US$ 100, this is a rare opportunity to acquire an extremely rare selenium species.

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Details

Dimensions
4.6 × 5.9 × 4.4 cm
Categories
Rare Minerals
Locality
Tumiñico Mine, Sierra de Cacho, Villa Castelli, General Lamadrid department, La Rioja, Argentina

Minerals on Specimen

Minerals on specimen
Malachite,, Umangite

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