Jordanite
Mineral Pb14(As,Sb)6S23
Take care.
- Contains lead: Wash your hands after handling it, keep it away from children, and don't make dust.
- Contains arsenic: Wash your hands after handling it, don't make dust, and never heat it.
About it
Lead-grey six-sided-looking crystals with an iridescent tarnish. Best known from the Lengenbach quarry in the Binn Valley, Switzerland, a classic sulfosalt locality.
- Type
- Mineral
- Group
- Sulfosalt
- Formula
- Pb14(As,Sb)6S23
- Hardness (Mohs)
- 3
- Specific gravity
- 6.3–6.5
- Streak
- black
- Lustre
- metallic
- Crystal system
- Monoclinic
- Colours
- lead grey, iridescent tarnish
- Transparency
- opaque
- Cleavage and fracture
- perfect in one direction
Typical values: real specimens vary. For more, see mindat.org.