Villiaumite
Mineral NaF
Take care.
- Toxic: Wash your hands after handling it, don't lick or taste it, and don't make dust.
- Damaged by water: Keep it dry: don't wash it, and keep it out of damp places.
About it
Deep carmine-red crystals in sodium-rich syenites, as at Mont Saint-Hilaire, Quebec, and the Kola Peninsula, Russia. It dissolves in water and is poisonous if swallowed.
- Type
- Mineral
- Group
- Halide, halite group
- Formula
- NaF
- Hardness (Mohs)
- 2–2.5
- Specific gravity
- 2.79
- Streak
- white
- Lustre
- vitreous (glassy)
- Crystal system
- Isometric (cubic)
- Colours
- carmine red, pink, orange
- Transparency
- transparent, translucent
- Cleavage and fracture
- perfect cubic
Typical values: real specimens vary. For more, see mindat.org.