Fluororichterite is a gem that is incredibly rare. It absolutely was only recently approved by the IMA as a mineral that is new 1993. Fluororichterite is usually only found as opaque, black to very dark crystals which can be green a mine in Wilberforce, Ontario, Canada. A realize that is recent Pakistan produced small, transparent, near colourless crystals suitable for faceting. This find produced extremely material that is little so gems are very difficult to have.

Category: Silicate mineral
Formula: Na(Na,Ca)Mg5Si8O22F2
Crystallography: Monoclinic – Prismatic
Crystal Habit: Prismatic crystals with a nearly diamond shaped cross-section with the four points usually cut by minor prism faces.
Twinning: Commonly seen and results in a groove or notch running down the “spine” of the prismatic crystals.


Cleavage: Imperfect in two directions
Fracture: Uneven
Tenacity: Brittle
Hardness (Mohs): 5.0 – 6.0
Density: 3.17 (g/cm3)
Luminescence: None
Radioactivity: Not Radioacitve


Color: Dark Green, Gray, Black, Brownish-Red, Rose-Red, Yellow; also very rarely Colorless
Transparency: Opaque, Translucent; also very rarely Transparent
Luster: Vitreous, Pearly
Refractive Index: n/a
Birefringence: n/a
Dispersion: n/a
Pleochroism: n/a