sedimentary
Petrified Wood
Silicified Wood (SiO2)
AI-generated identification · may be incorrectHardness of 7 on the Mohs scale, vitreous to waxy luster, amorphous crystal structure, and exhibits preserved cellular wood grain structures.
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Physical properties
Hardness of 7 on the Mohs scale, vitreous to waxy luster, amorphous crystal structure, and exhibits preserved cellular wood grain structures.
Formation & geological history
Formed through permineralization where groundwater rich in dissolved silica replaces original organic matter over millions of years.
Uses & applications
Used primarily in decorative items, jewelry, lapidary art, and collected as geological specimens.
Geological facts
Famous occurrences include the Petrified Forest National Park in Arizona, containing trees dating back over 200 million years.
Field identification & locations
Identified by its distinctive wood-like grain patterns combined with a stone-like weight and high hardness.
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