Acanthite pseudomorph after Proustite, Chalcopyrite - image 1

Acanthite pseudomorph after Proustite, Chalcopyrite

A

Alex Schauss
0 for sale
Acanthite pseudomorph after proustite with chalcopyrite, 2.4 cm, from the Uchucchacua mine, Oyon, Lima, Peru. Tom Spann photo.

Product details

Species
Proustite, Acanthite, ChalcopyriteAbout Proustite →
SizeThumbnail
Dimensions2.4 cm
Added on02/13/2026
Locality
Peru, Lima, Uchucchacua MineRegional guide →
Publications
  • Mineralogical Record Mineral Collections In Arizona page 154

Learn more

Proustite
Mineral guide
Learn about Proustite
ruby-silver trigonal prisms with deep crimson color and gemmy glow; photosensitive, prized for backlit cherry-red interiors and hydrothermal deposit…
Proustite
Regional guide
Proustite from Uchucchacua Mine, Peru
from the Uchucchacua Mine occupies a special place among modern “ruby silver” specimens: it is not usually the biggest proustite in the world, but the best pieces have a unmistakable Uchucchacua look—steel-gray to mirror-bright trigonal crystals that suddenly flash cherry- to blood-red when a strong light enters the crystal. That contrast is the appeal. In normal cabinet lighting the crystals may look metallic, almost blackened silver; under backlighting they reveal the saturated internal red that makes proustite one of the great optical pleasures of silver mineral collecting.