Pyromorphite
Mineral Pb5(PO4)3Cl
Take care.
- Contains lead: Wash your hands after handling it, keep it away from children, and don't make dust.
About it
Barrel-shaped hexagonal prisms, often hollow at the ends, in grass green to yellow and brown, very heavy for their size. Superb from the Bunker Hill mine in Idaho, Les Farges in France, and Daoping in China.
- Type
- Mineral
- Group
- Phosphate, apatite group
- Formula
- Pb5(PO4)3Cl
- Hardness (Mohs)
- 3.5–4
- Specific gravity
- 6.5–7.1
- Streak
- white
- Lustre
- resinous, adamantine (diamond-like)
- Crystal system
- Hexagonal
- Colours
- green, yellow, brown, orange, grey, white
- Transparency
- transparent, translucent
- Cleavage and fracture
- none to poor; uneven to subconchoidal fracture
Typical values: real specimens vary. For more, see mindat.org.