Entry № 147
Fluorite
Calcium Fluoride
A crystal that comes in every colour and cleaves along octahedra.
Chakra
Third Eye · Heart
Element
Air
Zodiac
Capricorn · Pisces

I. The Metaphysical Reading
How the stone has been held.
Fluorite is worked with as a stone of order, kept nearby during long study, decluttering and any practice that asks a person to sort their inputs. Practitioners hold it as a reminder that clarity often looks like colour arriving in bands rather than in a single line.
- Chakra
- Third Eye · Heart
- Element
- Air
- Zodiac
- Capricorn · Pisces
- Keynote
- A crystal that comes in every colour and cleaves along octahedra.
II. The Scientific Reading
What the lattice actually does.
Fluorite is calcium fluoride crystallising in the cubic system with perfect octahedral cleavage. Its wide colour range comes from lattice defects (colour centres) and trace rare-earth substitutions; the phenomenon of fluorescence itself is named after this mineral, first recorded in Derbyshire specimens by George Stokes in 1852. Hunan Province in China is now the world's dominant source of specimen and industrial-grade material.
- Formula
- CaF₂
- System
- Cubic (isometric)
- Hardness
- 4 (Mohs)
- Provenance
- China (Hunan), UK (Weardale, Derbyshire), Mexico, USA (Illinois), Namibia
References & Sources
Independent mineralogical references used to verify the scientific details above.
Mineral Profile
Fact Sheet
- Chemical Formula
- CaF₂
- Crystal System
- Cubic (isometric)
- Mohs Hardness
- 4 (Mohs)
- Density
- 3.18 g/cm³
- Refractive Index
- 1.433 – 1.435
- Provenance
- China (Hunan), UK (Weardale, Derbyshire), Mexico, USA (Illinois), Namibia
- Color Origin
- Purple, green, blue, yellow and clear bands from rare-earth traces and colour centres
Related Crystals
Stones that share this lattice
Next in the Atlas
Fossil Coral
A reef preserved in chalcedony flowers.



