Entry № 149
Fossilised Wood
Petrified Silicified Wood
A tree that became a stone without losing its rings.
Chakra
Root
Element
Earth
Zodiac
Virgo · Capricorn

I. The Metaphysical Reading
How the stone has been held.
Fossilised Wood is worked with as a stone of grounded lineage, kept nearby during genealogy work, home-building rituals and any practice that asks a person to inherit slowly. Practitioners hold it as a reminder that structure can outlast the living thing that built it.
- Chakra
- Root
- Element
- Earth
- Zodiac
- Virgo · Capricorn
- Keynote
- A tree that became a stone without losing its rings.
II. The Scientific Reading
What the lattice actually does.
Petrified wood forms when buried timber is infiltrated by silica-rich groundwater and its organic tissue is replaced cell-by-cell by chalcedony, opal or agate over tens of millions of years, preserving the original wood anatomy in stone. The Petrified Forest National Park in Arizona preserves Late Triassic conifers; the Patagonian and Indonesian deposits are Jurassic and Miocene respectively.
- Formula
- SiO₂ (replacing original lignin and cellulose)
- System
- Trigonal (microcrystalline)
- Hardness
- 6.5 – 7 (Mohs)
- Provenance
- USA (Arizona – Petrified Forest), Argentina (Patagonia), Indonesia, Madagascar
References & Sources
Independent mineralogical references used to verify the scientific details above.
Mineral Profile
Fact Sheet
- Chemical Formula
- SiO₂ (replacing original lignin and cellulose)
- Crystal System
- Trigonal (microcrystalline)
- Mohs Hardness
- 6.5 – 7 (Mohs)
- Density
- 2.60 – 2.70 g/cm³
- Refractive Index
- 1.530 – 1.540
- Provenance
- USA (Arizona – Petrified Forest), Argentina (Patagonia), Indonesia, Madagascar
- Color Origin
- Caramel, cream, rust and grey banding preserving bark and growth rings
Related Crystals
Stones that share this lattice
Next in the Atlas
Fuchsite
A green mica that keeps chromium in its sheets.




