Difference between revisions of "Psilomelane"
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== Description == | == 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). | + | 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). |
| − | == | + | == Physical and Chemical Properties == |
| − | Fracture = subconchoidal. Luster = submetallic. Streak = black | + | * Fracture = subconchoidal. |
| + | * Luster = submetallic. | ||
| + | * Streak = black | ||
| + | * Composition = BaMnMn8O1 6(OH)4 | ||
| + | * Mohs Hardness = 5.0 - 6.0 | ||
| − | + | ==Resources and Citations== | |
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| − | + | * Mineralogy Database: [http://www.webmineral.com/data/Psilomelane.shtml Psilomelane] | |
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| − | Mineralogy Database: [http://www.webmineral.com/data/Psilomelane.shtml Psilomelane] | ||
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 15:13, 22 October 2022
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).
Physical and Chemical Properties
- Fracture = subconchoidal.
- Luster = submetallic.
- Streak = black
- Composition = BaMnMn8O1 6(OH)4
- Mohs Hardness = 5.0 - 6.0
Resources and Citations
- Mineralogy Database: Psilomelane