igneous
Pumice
Pumice
AI-generated identification · may be incorrectHardness 6 on Mohs scale, pale grey to white color, vesicular or frothy texture with glass luster, specific gravity less than 1.0 allowing it to float on water.
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Physical properties
Hardness 6 on Mohs scale, pale grey to white color, vesicular or frothy texture with glass luster, specific gravity less than 1.0 allowing it to float on water.
Formation & geological history
Formed during explosive volcanic eruptions when frothy, gas-rich lava rapidly cools and depressurizes, trapping gas bubbles.
Uses & applications
Widely used in lightweight construction aggregates, abrasive soaps, pumice stones for personal care, and horticulture.
Geological facts
Pumice is one of the few rocks that can float on water due to its high porosity and trapped gas bubbles.
Field identification & locations
Easily identified by its extremely low weight and porous, sponge-like texture, commonly found near volcanic regions worldwide.
