Obsidian
| Use attributes for filter ! | |
| Optical properties | Translucent |
|---|---|
| Color | Deep black or blackish green |
| Other characteristics | Texture: Smooth; glassy |
| Specific gravity | c. 2. 4 |
| Luster | Vitreous |
| Did you know | The color distribution in obsidian is more than that of smoky quartz. |
| Date of Reg. | |
| Date of Upd. | |
| ID | 1354239 |
About Obsidian
Obsidian is a naturally occurring volcanic glass formed as an extrusive igneous rock. Obsidian is produced when felsic lava extruded from a volcano cools rapidly with minimal crystal growth.
Obsidian Photos
