Famatinite
Mineral Cu3SbS4
Take care.
- Toxic: Wash your hands after handling it, don't lick or taste it, and don't make dust.
About it
The antimony partner of luzonite: greyish, pinkish-tinged masses in copper veins. Named for the Famatina mountains of Argentina.
- Type
- Mineral
- Group
- Sulfosalt
- Formula
- Cu3SbS4
- Hardness (Mohs)
- 3.5
- Specific gravity
- 4.5–4.7
- Streak
- black
- Lustre
- metallic
- Crystal system
- Tetragonal
- Colours
- grey with a pinkish or coppery tint
- Transparency
- opaque
- Cleavage and fracture
- imperfect; uneven fracture
Typical values: real specimens vary. For more, see mindat.org.