Crystal system: Hexagonal.
Cell salt: A native mineral ore, usually with some antimony, iron, nickel, silver and sulphur.
Colour: Tin white, quickly tarnishing to dark grey; evolved specimens are orange-red with a metallic glow.
Energy: Electric.
Element: Fire, air and earth.
Planet/sign: Jupiter/Sagittarius; Mercury/Virgo.
CAUTION: The fumes of arsenic crystal are poisonous, so take care to avoid
breathing the fumes. Arsenic is deadly, if taken internally.
Uses: Despite the potential danger, this stone happens to be an excellent diagnostic tool for getting to the root of disruptive mental and physical conditions. It is especially beneficial when used to overcome inertia. The orange-red coloured crystals are the preferred healing stones.