- MD-130246
- Cristobalite
- Coso Hot Springs deposit, Coso Hot Springs, Coso District (New Coso District), Inyo Co., California, USA
- Small Cabinet, 9.1 x 6.4 x 6.0 cm
- SOLD
A specimen otherwise known as volcanic glass, from California. It almost looks like man-made slag but is of course natural volcanic igneous rock - great for demonstrating to kiddies! Small cristobalite crystals are also present inside the obsidian bubbles.