Entry № 243
Imperial Topaz
Al₂SiO₄(F,OH)₂
Golden-orange topaz once reserved for royalty.
Chakra
Solar Plexus · Sacral
Element
Fire · Sun
Zodiac
Leo · Sagittarius

I. The Metaphysical Reading
How the stone has been held.
Imperial topaz is worked with as a stone of sovereign will and radiant self-worth, held when someone is stepping into visible leadership or reclaiming authority over their own life.
- Chakra
- Solar Plexus · Sacral
- Element
- Fire · Sun
- Zodiac
- Leo · Sagittarius
- Keynote
- Golden-orange topaz once reserved for royalty.
II. The Scientific Reading
What the lattice actually does.
Imperial topaz is the trade name for topaz in the golden-orange to reddish-pink colour range, historically reserved for stones from the Ouro Preto district of Minas Gerais, Brazil. Colour arises from a combination of chromium substitution and defect colour centres in the aluminium fluorosilicate structure. Topaz crystallises in fluorine-rich late-stage pegmatites and hydrothermal veins, and its perfect basal cleavage — despite Mohs 8 hardness — makes cutting a specialist skill.
- Formula
- Al₂SiO₄(F,OH)₂
- System
- Orthorhombic
- Hardness
- 8 (Mohs)
- Provenance
- Brazil (Ouro Preto, Minas Gerais); minor Pakistan, Russia
References & Sources
Independent mineralogical references used to verify the scientific details above.
Mineral Profile
Fact Sheet
- Chemical Formula
- Al₂SiO₄(F,OH)₂
- Crystal System
- Orthorhombic
- Mohs Hardness
- 8 (Mohs)
- Density
- 3.49 – 3.57 g/cm³
- Refractive Index
- 1.606 – 1.644
- Provenance
- Brazil (Ouro Preto, Minas Gerais); minor Pakistan, Russia
- Color Origin
- Golden yellow to reddish-orange from chromium and colour centres
Related Crystals
Stones that share this lattice
Next in the Atlas
Indonesia Palmwood
Fossil palm trunk turned to stone with its rods intact.




