Entry № 167
Colourless Fluorite
Fluorite (var. clear)
The optical purity behind fluorite's whole family.
Chakra
Crown
Element
Air
Zodiac
Aquarius · Pisces

I. The Metaphysical Reading
How the stone has been held.
Colourless fluorite is worked with as a stone of ordered thinking, kept on the desk during study, planning and any practice that asks the mind to arrange itself. Practitioners hold it as a stone that steadies discernment without pushing a particular outcome.
- Chakra
- Crown
- Element
- Air
- Zodiac
- Aquarius · Pisces
- Keynote
- The optical purity behind fluorite's whole family.
II. The Scientific Reading
What the lattice actually does.
Colourless fluorite is the near-pure form of calcium fluoride, CaF₂, in which the colour centres and rare-earth substitutions that tint purple, green, blue and yellow fluorites are effectively absent. Its very low refractive index and exceptionally low dispersion make optical-grade colourless fluorite valuable for apochromatic camera and microscope lenses.
- Formula
- CaF₂
- System
- Isometric (cubic)
- Hardness
- 4 (Mohs)
- Provenance
- China, Switzerland (Alps), UK, Namibia, USA
References & Sources
Independent mineralogical references used to verify the scientific details above.
Mineral Profile
Fact Sheet
- Chemical Formula
- CaF₂
- Crystal System
- Isometric (cubic)
- Mohs Hardness
- 4 (Mohs)
- Density
- 3.18 g/cm³
- Refractive Index
- 1.433 – 1.435
- Provenance
- China, Switzerland (Alps), UK, Namibia, USA
- Color Origin
- Water-clear to faintly tinted cubic and octahedral crystals
Related Crystals
Stones that share this lattice
Next in the Atlas
Colourless Topaz
The unpigmented base of every treated blue topaz.




