Löllingite
Mineral FeAs2
Take care.
- Contains arsenic: Wash your hands after handling it, don't make dust, and never heat it.
About it
Silver-white iron arsenide like arsenopyrite but heavier and with no sulfur, as prisms or masses in pegmatites and ore veins. Named for Lölling in Carinthia, Austria.
- Type
- Mineral
- Group
- Arsenide, löllingite group
- Formula
- FeAs2
- Hardness (Mohs)
- 5–5.5
- Specific gravity
- 7.4–7.6
- Streak
- greyish black
- Lustre
- metallic
- Crystal system
- Orthorhombic
- Colours
- silver white, steel grey
- Transparency
- opaque
- Cleavage and fracture
- distinct basal; uneven fracture
Typical values: real specimens vary. For more, see mindat.org.