mineral
Mixed Gemstone Rough
Various silicate and oxide minerals
AI-generated identification · may be incorrectHardness varies from 6 to 9 on the Mohs scale depending on the specimen. Colors include yellow, blue, brown, and clear with vitreous to greasy lusters.
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Physical properties
Hardness varies from 6 to 9 on the Mohs scale depending on the specimen. Colors include yellow, blue, brown, and clear with vitreous to greasy lusters.
Formation & geological history
Formed in diverse geological settings including pegmatites, metamorphic veins, and alluvial deposits over millions of years.
Uses & applications
Used for lapidary work, wire wrapping, jewelry making, and mineral collections.
Geological facts
These parcels typically contain a mix of durable stones like quartz, beryl, or corundum that resist weathering.
Field identification & locations
Identify through scratch testing, specific gravity, and crystal habit evaluation. Commonly sourced from gemstone gravels worldwide.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous