Stolzite
Mineral PbWO4
Take care.
- Contains lead: Wash your hands after handling it, keep it away from children, and don't make dust.
About it
Lead tungstate, built like wulfenite but heavier and usually in stubby dipyramids. Fine crystals come from Broken Hill in Australia; named for Bohemian physician Joseph Stolz.
- Type
- Mineral
- Group
- Tungstate, scheelite group
- Formula
- PbWO4
- Hardness (Mohs)
- 2.5–3
- Specific gravity
- 7.9–8.3
- Streak
- white
- Lustre
- adamantine (diamond-like), resinous
- Crystal system
- Tetragonal
- Colours
- orange, yellow, brown, reddish brown, grey, greenish
- Transparency
- transparent, translucent
- Cleavage and fracture
- imperfect pyramidal; conchoidal fracture
Typical values: real specimens vary. For more, see mindat.org.