Psilomelane
Revision as of 07:13, 24 July 2013 by (username removed)
Description
A black metallic hydroxide of barium and manganese. Psilomelane is an important ore of manganese. It occurs as black rounded masses and is found in Germany, France, Belgium, Scotland, Sweden, India, and the U.S.(Arizona, Virginia).
Other Properties
Fracture = subconchoidal. Luster = submetallic. Streak = black
| Composition | BaMnMn8O1 6(OH)4 |
|---|---|
| Mohs Hardness | 5.0 - 6.0 |
Additional Information
Mineralogy Database: Psilomelane