Brian Kosnar Mineral Classics
Ship from USA · 710 items · On Agora since 2026
Showing 641–660 of 710 items
opal (cat's eye)
opal
opal ("fever opal")
semi-black opal
opal in petrified wood (opalized wood)
parisite (incredibly rare gemstone)
peridot
pezzottaite
rutile included quartz
quartz with lazulite inclusions
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