- Category
- Volcanic
- Color
- Black
- Hardness
- 5 to 6
- Luster
- Vitreous
- Cleavage
- N/A
- Fracture
- Conchoidal
- Streak
- N/A
- Transparency
- Translucent
- Location
- China
- Date
- 2024-05
Dug out of gypsum that came with MDSGT. Birthday gift from M. and A..
Dug out of gypsum that came with MDSGT. Birthday gift from M. and A..