Cassiterite from Viloco Mine, Loayza Province, Bolivia - image 1

Cassiterite from Viloco Mine, Loayza Province, Bolivia

Highly lustrous cassiterite crystals. Minor chipping on some crystals.

Product details

SpeciesCassiteriteQuartz
Added on06/28/2026
LocalityBolivia, Loayza Province, Viloco Mine
Current owner
Trent Peppiatt
Trent Peppiatt
Bryan, Texas, United States
Acquired
2016

Owner’s note

TGMS convention center from unknown dealer

Member since 2026

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.
Locality guide
Viloco Mine
Viloco Mine, Bolivia — premier cassiterite locality famed for sharp, twinned crystals with notable translucency; top specimens rival gem-quality rough.