Entry № 318
Petrified Wood
Silicified fossil wood
A tree's memory written in stone.
Chakra
Root · Heart
Element
Earth
Zodiac
Leo · Capricorn

I. The Metaphysical Reading
How the stone has been held.
Petrified wood is considered a stone of slow, steady transformation and connection to ancestral wisdom. It is used for grounding, patience, and remembering that what feels lost can be preserved in new form.
- Chakra
- Root · Heart
- Element
- Earth
- Zodiac
- Leo · Capricorn
- Keynote
- A tree's memory written in stone.
II. The Scientific Reading
What the lattice actually does.
Petrified wood forms when buried plant material is slowly replaced by silica-rich groundwater, preserving cellular detail through permineralization. The colours come from trace metals: iron (reds/browns), manganese (black), copper (greens/blues).
- Formula
- SiO₂ (chalcedony, quartz, opal) replacing organic tissue
- System
- Trigonal / amorphous
- Hardness
- 6.5 – 7 (Mohs)
- Provenance
- USA (Arizona), Madagascar, Indonesia, Argentina, Brazil
References & Sources
Independent mineralogical references used to verify the scientific details above.
Mineral Profile
Fact Sheet
- Chemical Formula
- SiO₂ (chalcedony, quartz, opal) replacing organic tissue
- Crystal System
- Trigonal / amorphous
- Mohs Hardness
- 6.5 – 7 (Mohs)
- Density
- 2.50 – 2.70 g/cm³
- Refractive Index
- 1.535 – 1.540
- Provenance
- USA (Arizona), Madagascar, Indonesia, Argentina, Brazil
- Color Origin
- Brown, tan, red, yellow, grey, blue, green; often banded
Related Crystals
Stones that share this lattice
Next in the Atlas
Phenakite
A deceiver of light, brilliant and clear.




