Freieslebenite
Mineral AgPbSbS3
Take care.
- Contains lead: Wash your hands after handling it, keep it away from children, and don't make dust.
- Toxic: Wash your hands after handling it, don't lick or taste it, and don't make dust.
About it
Steel grey striated prisms of silver-lead antimony sulfide, a silver ore. Known from Freiberg, Germany, and Hiendelaencina, Spain; named for Johann Carl Freiesleben.
- Type
- Mineral
- Group
- Sulfosalt
- Formula
- AgPbSbS3
- Hardness (Mohs)
- 2–2.5
- Specific gravity
- 6–6.25
- Streak
- steel grey
- Lustre
- metallic
- Crystal system
- Monoclinic
- Colours
- steel grey, lead grey
- Transparency
- opaque
- Cleavage and fracture
- imperfect; uneven fracture
Typical values: real specimens vary. For more, see mindat.org.