Table of Contents
1. iron_manganese_tungsten
noun. 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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2. manganese
noun. ['ˈmæŋgəˌniːz'] a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals.
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Etymology
- manganese (English)
- manganèse (French)
- manganese (Italian)
3. iron-grey
4. tungsten
noun. ['ˈtʌŋstən'] a heavy grey-white metallic element; the pure form is used mainly in electrical applications; it is found in several ores including wolframite and scheelite.
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5. iron
noun. ['ˈaɪɝn'] a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood.