Cassiterite, Pyrite, Quartz - image 1
Photo by Albert Russ

Cassiterite, Pyrite, Quartz

AS
Alfred Schreilechner
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Cassiterite (heart-shaped twin) with some minor pyrite coating, encircled with tiny quartz crystals, 3.4 cm, from the Viloco mine, Loayza Province, La Paz Department, Bolivia. Acquired in March 2015. Photo: Albert Russ.

Product details

SpeciesCassiterite, Quartz, Pyrite
SizeMiniature
Dimensions3.4 cm
Added on02/13/2026
LocalityBolivia, Loayza Province, Viloco Mine
Publications
  • Mineralogical Record Mineral Collections In Austria page 64

Learn more

Cassiterite
Mineral guide
Learn about Cassiterite
mirror-like luster and dense, prismatic crystals; localities Panasqueira, Xuebaoding, Viloco; value hinges on finish, size, and matrix.
Cassiterite
Regional guide
Cassiterite from Viloco Mine, Bolivia
Viloco Mine cassiterite — Bolivia’s essential tin locality, known for dark, mirror-bright crystals and rare transparent, facet-quality specimens.