sedimentary
Petrified Wood
Silicified wood (SiO2)
AI-generated identification · may be incorrectHardness of 6.5 to 7 on the Mohs scale, varying brown, tan, and grey colors, vitreous to waxy luster, and microcrystalline quartz structure.
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Physical properties
Hardness of 6.5 to 7 on the Mohs scale, varying brown, tan, and grey colors, vitreous to waxy luster, and microcrystalline quartz structure.
Formation & geological history
Formed when buried organic wood is slowly replaced by silica-rich groundwater over millions of years, often dating back to the Mesozoic era.
Uses & applications
Used primarily for ornamental carvings, decorative display pieces, and lapidary jewelry.
Geological facts
The cellular structure of the original tree is frequently preserved in microscopic detail during the mineralization process.
Field identification & locations
Identified by retaining distinct wood grain patterns and bark textures while exhibiting stone-like hardness and weight. Commonly found in deserts and ancient river basins worldwide.
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