mineral
Tumbled Mixed Gemstones (Quartz and Rutile)
Silicon Dioxide (SiO2) with various inclusions
Hardness: 7 (Mohs scale); Color: Clear, green, smoky, and reddish; Luster: Vitreous; Crystal structure: Trigonal; Cleavage: None; Specific Gravity: 2.65
- Hardness
- 7 (Mohs scale)
- Color
- Clear, green, smoky, and reddish
- Luster
- Vitreous
Identified More mineral →
Explore Tumbled Mixed Gemstones (Quartz and Rutile) in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness: 7 (Mohs scale); Color: Clear, green, smoky, and reddish; Luster: Vitreous; Crystal structure: Trigonal; Cleavage: None; Specific Gravity: 2.65
Formation & geological history
Formed in hydrothermal veins and pegmatites through the slow cooling of silica-rich fluids. These specimens likely range from millions to hundreds of millions of years in age.
Uses & applications
Primarily used for decorative purposes, meditation practices, metaphysical healing, and small jewelry components like wire-wrapped pendants.
Geological facts
Many of these pieces exhibit 'rutilated' or 'tourmalinated' effects, where needle-like inclusions of other minerals are trapped inside the quartz during growth. Tumble finishing uses abrasive grit to simulate natural river erosion.
Field identification & locations
Identify by their glassy surface and extreme hardness (cannot be scratched by steel). These tumbled assortments are commonly found in gift shops and gem mines globally.
More like this
Other mineral specimens
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Schist
Schist
Metamorphic
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Gypsum (variety Selenite or Alabaster)
Calcium sulfate dihydrate (CaSO4·2H2O)
Mineral
Nephrite Jade
Nephrite
Mineral/Rock
Banded Gneiss (River Rock/Pebble)
Gneiss (specifically a banded variety often found as a river rock)
Metamorphic Rock