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Entry № 167

Colourless Fluorite

Fluorite (var. clear)

The optical purity behind fluorite's whole family.

Chakra

Crown

Element

Air

Zodiac

Aquarius · Pisces

Colourless Fluorite

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

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Next in the Atlas

Colourless Topaz

The unpigmented base of every treated blue topaz.