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| Wolframite | |
|---|---|
| General | |
| Category | Mineral |
| Chemical formula | (Fe,Mn)WO4 |
| Identification | |
| Colour | Black to dark grey |
| Crystal habit | Tabular crystals, sometimse prismatic |
| Crystal system | Monoclinic |
| Cleavage | Good |
| Fracture | Uneven to rough |
| Mohs Scale hardness | 4-4.5 |
| Luster | Submetalli |
| Refractive index | Opaque |
| Pleochroism | None |
| Streak | Black |
| Specific gravity | 7 |
| Fusibility | ? |
| Solubility | ? |
| Major varieties | |
| None | |
Wolframite (Fe,Mn)WO4, is a mineral that is the intermediate between Ferberite and Huebernite . Along with Scheelite, the Wolframite series are the most important tungstenThis article is about the chemical element. Tungsten may also refer to the Tungsten Handheld PDA. Tungsten (formerly Wolfram is a chemical element in the periodic table that has the symbol W ( L. Wolframium and atomic number 74. A very hard, heavy, steel- ore. China reportedly has the world's largest supply of tungsten ore.
Science stubs Minerals Tungstate minerals