M MineralystRock & Mineral Guide
Fossil

Petrified Wood

Petrified Wood — reference photo

Petrified Wood is a fossil. It has a Mohs hardness of 7 and vitreous to waxy luster.

Petrified Wood properties

TypeFossil
Mohs hardness7
LusterVitreous to waxy
Typical colorsBrown, red, yellow, green, blue, and black
FormationFormed from the mineralization of wood in a silica-rich environment, typically via the process of permineralization.
Rarity6 / 10

Mohs hardness 7 — hard

1 · Talc5 · Apatite10 · Diamond
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