igneous
Pumice
Pumice
AI-generated identification · may be incorrectHardness of 6 on Mohs scale, white to gray color, dull luster, amorphous volcanic glass structure, specific gravity less than 1.
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Physical properties
Hardness of 6 on Mohs scale, white to gray color, dull luster, amorphous volcanic glass structure, specific gravity less than 1.
Formation & geological history
Formed during explosive volcanic eruptions when frothy lava cools rapidly, trapping gas bubbles.
Uses & applications
Used in lightweight concrete, abrasives, landscaping, and personal care products like pumice stones.
Geological facts
Pumice is the only rock known to float on water due to its extreme porosity.
Field identification & locations
Easily identified by its extremely low weight and vesicular, sponge-like texture; found worldwide near young volcanic regions.
