gemstone
Tumbled Gemstones
Various silicate and oxide minerals
AI-generated identification · may be incorrectHardness varies from 6 to 9 on the Mohs scale depending on the specific mineral; displays diverse colors including purple, red, blue, and white with a vitreous to waxy luster.
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Physical properties
Hardness varies from 6 to 9 on the Mohs scale depending on the specific mineral; displays diverse colors including purple, red, blue, and white with a vitreous to waxy luster.
Formation & geological history
Formed through various geological processes including igneous crystallization, metamorphic alteration, and sedimentary deposition over millions of years, then artificially tumbled.
Uses & applications
Used extensively in jewelry, decorative items, crystal healing, and as beginner specimens for rockhound collections.
Geological facts
Tumbling simulates the natural water-wearing process in rivers and oceans over several weeks using abrasive grits in a rotary tumbler.
Field identification & locations
Identify individual stones by testing hardness, streak, and specific gravity; commonly purchased in mixed lots at rock and mineral shops worldwide.
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