Ehya Mining & Industrial & Commercial Sh.H.Gheibi Co

Muscovite Muscovite is the most common mica, found in granites, pegmatites, gneisses, and schists, and as...

Iron ore Iron is a metal extracted mainly from the iron ore hematite. It oxidises readily in air and water t...

Manganese ore Manganese occurs principally as pyrolusite (MnO2), braunite, (Mn2+Mn3+6SiO12), psilomelane (Ba(Mn2+...

Chromite ore Chromite is iron magnesium chromium oxide: (Fe, Mg)Cr2O4. It is an oxide mineral belonging to the s...

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Chromite ore

Chromite is iron magnesium chromium oxide: (Fe, Mg)Cr2O4. It is an oxide mineral belonging to the spinel group.
Last Updated ( Sunday, 11 January 2009 )
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Manganese ore

Manganese occurs principally as pyrolusite (MnO2), braunite, (Mn2+Mn3+6SiO12), psilomelane (Ba(Mn2+)(Mn4+)8O16(OH)4), and to a lesser extent as rhodochrosite (MnCO3).
Last Updated ( Sunday, 11 January 2009 )
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Iron ore

Iron is a metal extracted mainly from the iron ore hematite. It oxidises readily in air and water to form Fe2O3 and is rarely found as a free element.
Last Updated ( Sunday, 11 January 2009 )
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Muscovite

Muscovite is the most common mica, found in granites, pegmatites, gneisses, and schists, and as a contact metamorphic rock or as a secondary mineral resulting from the alteration of topaz, feldspar, kyanite, etc.
Last Updated ( Thursday, 08 January 2009 )
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