| NOUN | substance | iron manganese tungsten, wolframite | a mineral consisting of iron and manganese tungstate in crystalline form |
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| Meaning | A mineral consisting of iron and manganese tungstate in crystalline form; the principal ore of tungsten; found in quartz veins associated with granitic rocks. | |
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| Synonym | wolframite | |
| Broader | mineral | Solid homogeneous inorganic substances occurring in nature having a definite chemical composition |
| Substances | tungsten, wolfram, W, atomic number 74 | A heavy grey-white metallic element |