Sellaite 0.50 ct.

Sellaite

Is a Magnesium Fluoride with formula MgF2 and hardness of 5-6.

It's crystals are generally very small and brittle, is rare to find a clean stone over 1 ct.

The best gem material comes from Brazil, and is quite expensive; this gem here instead comes from Grube Clara,Oberwolfach,Black Forest, Baden-Wurttenberg,Germany and is an aggregate of tiny acicular crystals.

Size: 5.5x5.5x3.5 mm.

Weight: 0.50 ct.

CODE#7082