sedimentary
Petrified Wood
Silicified wood (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, varies in color from brown to red, vitreous to waxy luster, amorphous crystal structure.
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Physical properties
Hardness of 7 on the Mohs scale, varies in color from brown to red, vitreous to waxy luster, amorphous crystal structure.
Formation & geological history
Formed when buried organic wood is slowly replaced by minerals like quartz over millions of years.
Uses & applications
Used in decorative items, jewelry making, lapidary art, and as collector specimens.
Geological facts
The organic material is completely replaced by stone while preserving the original cellular structure of the wood.
Field identification & locations
Identify by retaining wood grain textures combined with a stone-like weight and hardness.
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