Fluorite
At Mohs 4 fluorite is a display and pendant stone rather than a ring stone. Its appeal is colour banding and the fact that it can be cut in very large sizes with remarkable clarity for a fraction of the cost of any hard gem.
Fluorite at a glance
- Mineral family
- Fluorite
- Chemical formula
- CaF2
- Mohs hardness
- 4
- Refractive index
- 1.434
- Specific gravity
- 3.18
- Crystal system
- Cubic
- Colours
- green, purple, blue, multicolour
- Birthstone month
- ,
- Anniversary
- ,
- Typical treatment
- Untreated. Some material is coated, which should be disclosed.
- In stock now
- 1 stones from $181.00
What drives the price
At Mohs 4 fluorite is a display and pendant stone rather than a ring stone. Its appeal is colour banding and the fact that it can be cut in very large sizes with remarkable clarity for a fraction of the cost of any hard gem.
In one line: Colour zoning and vividness, size, cut quality.
Treatment
Untreated. Some material is coated, which should be disclosed.
Any seller unwilling to state treatment in writing is telling you something. Every listing on this site states it.
Durability and daily wear
Soft and cleavable in four directions. Handle as a collector or display stone. Never ultrasonic. Keep from knocks and from direct sunlight.
Mohs 4, cubic crystal system, specific gravity 3.18.
Tradition and meaning
Known as the genius stone, associated with mental order, focus and clearing confusion.
Birthstone for , . Associated with Pisces and Capricorn. Anniversary stone: , .
Frequently asked
Can fluorite be set in a ring?
It is not recommended for daily wear. At Mohs 4 with perfect octahedral cleavage, fluorite scratches against ordinary dust and can cleave on impact. It performs best in pendants, earrings and display settings.
Why is fluorite so inexpensive for its size?
Fluorite forms in large, clean, well-coloured crystals in many localities. Its softness limits jewellery demand, so beautiful 15-20 carat stones remain affordable.
Does fluorite glow?
Many fluorites fluoresce blue or violet under UV light, the phenomenon of fluorescence is literally named after this mineral.
