mineral
Assorted Decorative Tumbled Stones (Quartz, Sodalite, Aventurine, Calcite)
Mixed Silicates and Carbonates (SiO2, Na8(Al6Si6O24)Cl2, CaCO3)
AI-generated identification · may be incorrectHardness: 3-7 (Mohs); Colors: Blue, pink, green, white, orange; Luster: Vitreous to waxy; Structure: Hexagonal, Cubic, or Trigonal; Cleavage: Varies by mineral.
- Hardness
- 3-7 (Mohs)
- Luster
- Vitreous to waxy
Identified More mineral →
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Physical properties
Hardness: 3-7 (Mohs); Colors: Blue, pink, green, white, orange; Luster: Vitreous to waxy; Structure: Hexagonal, Cubic, or Trigonal; Cleavage: Varies by mineral.
Formation & geological history
These are diverse minerals formed through igneous and metamorphic processes, found worldwide and later tumbled/polished by machines to create smooth, rounded shapes.
Uses & applications
Used primarily for decorative art, jewelry (beads/pendants), metaphysical 'healing' crystals, and as affordable collectables for beginners.
Geological facts
Tumbled stones are created in a rock tumbler using progressively finer grits of silicon carbide over several weeks to mimic the natural erosion found in riverbeds.
Field identification & locations
Identify in the field by checking hardness and streak tests; often found in gravel pits or pegmatite deposits. These specific pieces are arranged in a mixed-media floral pebble art display.
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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
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Granite
Granite (Phaneritic intrusive igneous rock)
igneous