Small - 1.5/2.0cm
Medium - 2.0/2.5cm
Large - 2.5/3.0 cm
Fluorite octahedron in green, colorless and purple colors.
In industry, fluorite is mainly used as a flux in the metallurgy of iron and steel.
It is used as a source of fluorine to obtain hydrofluoric acid and also to obtain insecticides, resins and plastics.
The piece you receive may differ slightly from the photo shown as the minerals are natural and no piece is identical. The size is approximate.