Difference between revisions of "Pyrolusite"
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== Description == | == Description == | ||
| − | A manganese dioxide ore that is used as a decolorizer in the manufacture of glass. The lustrous, metallic black ore is mined in various regions of Germany, Brazil, Cuba, Morocco, Ghana, South Africa, India and the U.S.(Georgia, Minnnesota). Pyrolusite is used in the manufacture of ferromanganese, steel and manganese bronze. | + | A manganese dioxide ore that is used as a decolorizer in the manufacture of glass. The lustrous, metallic black ore is mined in various regions of Germany, Brazil, Cuba, Morocco, Ghana, South Africa, India and the U.S.(Georgia, Minnnesota). Pyrolusite is used in the manufacture of ferromanganese, [[steel]] and manganese bronze. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
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glassmaker's soap; pirolusita (Esp.); pirolusite (Port.); Pyrolusit (Deut.); pyrolusiet (Ned.) | glassmaker's soap; pirolusita (Esp.); pirolusite (Port.); Pyrolusit (Deut.); pyrolusiet (Ned.) | ||
| − | == | + | == Physical and Chemical Properties == |
| − | Tetragonal crystal system, usually found as massive columns. Cleavage is perfect in one direction. Fracture is splintery; brittle. Luster = metallic to dull. Streak = black to bluish black. | + | * Tetragonal crystal system, usually found as massive columns. |
| + | * Cleavage is perfect in one direction. | ||
| + | * Fracture is splintery; brittle. | ||
| + | * Luster = metallic to dull. | ||
| + | * Streak = black to bluish black. | ||
{| class="wikitable" | {| class="wikitable" | ||
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|- | |- | ||
! scope="row"| Density | ! scope="row"| Density | ||
| − | | 4.75 | + | | 4.75 g/ml |
|} | |} | ||
| − | == | + | ==Resources and Citations== |
| − | Mineralogy Database: [http://www.webmineral.com/data/Pyrolusite.shtml Pyrolusite] | + | * Mineralogy Database: [http://www.webmineral.com/data/Pyrolusite.shtml Pyrolusite] |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 09:57, 18 October 2022
Description
A manganese dioxide ore that is used as a decolorizer in the manufacture of glass. The lustrous, metallic black ore is mined in various regions of Germany, Brazil, Cuba, Morocco, Ghana, South Africa, India and the U.S.(Georgia, Minnnesota). Pyrolusite is used in the manufacture of ferromanganese, Steel and manganese bronze.
Synonyms and Related Terms
glassmaker's soap; pirolusita (Esp.); pirolusite (Port.); Pyrolusit (Deut.); pyrolusiet (Ned.)
Physical and Chemical Properties
- Tetragonal crystal system, usually found as massive columns.
- Cleavage is perfect in one direction.
- Fracture is splintery; brittle.
- Luster = metallic to dull.
- Streak = black to bluish black.
| Mohs Hardness | 2.0 - 2.5 |
|---|---|
| Density | 4.75 g/ml |
Resources and Citations
- Mineralogy Database: Pyrolusite