Tumbled Stones (various)

Physical Properties

Hardness: 6.5-7 Mohs; Color: Varied (red, pink, green, yellow, black); Luster: Vitreous to waxy; Structure: Microcrystalline (trigonal); Cleavage: None/Conchoidal fracture.

Formation & Geological History

Formed primarily through hydrothermal processes and volcanic activity where silica-rich fluids cooled and crystallized. These specimens have been mechanically polished in a rock tumbler to create smooth, rounded shapes.

Uses & Applications

Used for decorative purposes, meditation, energy healing practices, craft projects, and jewelry such as wire-wrapped pendants.

Geological Facts

This assortment includes varieties like Red Jasper, Rose Quartz, Aventurine, and Unakite. The process of tumbling mimics natural river erosion but at a much faster pace using abrasive grits.

Field Identification & Locations

Identify by hardness (cannot be scratched by a steel blade) and lack of visible crystal faces due to the tumbling process. Common in gift shops and lapidary collections worldwide.

Identified on: 5/3/2026

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