FLUORITE

CLASS: Halide. . . CHEMICAL FORMULA: CaF2. . . CRYSTAL SYSTEM: cubic
CRYSTAL FORM: cube, octahedron, rhombododecahedron
COLOR: very variable (transparent, blue, yellow, pink, purple, black …)
PHYSICAL PROPERTIES: medium hard (4 Mohs), heavy (3,1/3,3 g/cm3), fragile, octahedral cleavage, transparent / translucent, vitreous / wet gloss, thermoluminescent and highly fluorescent to ultraviolet rays.
CURIOSITIES: related to physical, mental and spiritual balance.