how to facet
gemstone main cabochon creation
mineral data
Mineral Name: fluorite
Gem Names: fluorite
Chemistry: CaF2
Class: halides
Crystal Sys: isometric (cubic)
Hardness: 4 Specific Gravity: 3.0 - 3.25
Fracture: conchoidal Refractive Index: 1.434
Dispersion: 0.007
Misc Prop: Fluorite has perfect cleavage in three directions and is thus very unstable to physical abuse. It is also very soft and easy to scratch. It should never be used in rings. It has a strong fluorescence. Fluorite is also heat sensitive and can be made to crack when heated. Most gemstone fluorite has been irradiated to deepen color.

Fluorite can be found in blue, purple, green, yellow, raspberry, and most other colors. It is often cut from starting material with "stripes" of color running through it, and produces multi-colored gems. The market has been flooded with gems from China in the past few years. It is available in very large sizes, but due to its limited value in jewelry it is more of collectors stone and nor particularly expensive.

Color: In gemstones, color, is often the key to naming or describing the particular variety. Hence look for this information below in the various descriptions. Color, opacity, and homogeneity often determine the placement of value on any given stone, and are all optical properties of the particular stone.
Specific Data:
multi-color striped stone (rectangular) magenta - blue
multi-colored (green and yellow mainly) elongated rectangular cut
deep rectangular cut - magenta - blue
very large rectangular stone - yellow/green and brown