Zinc ore is most commonly found as zinc carbonate (ZnCO3), known as calamine or smithsonite. It generally occurs as rounded, crystalline crusts or granular, honeycombed masses that have a vitreous or pearly luster and are typically dirty brown or grey in colour. Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic table. In some respects, zinc is chemically similar to magnesium: both elements exhibit only one normal oxidation state (+2), and the Zn2+ and Mg2+ ions are of similar size. Zinc is the 24th most abundant element in Earth's crust and has five stable isotopes. The most common zinc ore is sphalerite (zinc blende), a zinc sulfide mineral. The largest workable lodes are in Australia, Asia, and the United States. Zinc is refined by froth flotation of the ore, roasting, and final extraction using electricity (electrowinning). Item Specification LE: 60.244% Zn: 32.767% Pb: 4.403% Fe: 2.244% Ti: 0.225% Hf: 0.073% V: 0.03% Zr: 0.014% Moisture: >3
The main copper sulphide minerals are chalcopyrite (CuFeS2) chalcocite (Cu2S), covellite (CuS), bornite (Cu5FeS4), tetrahedrite ((Cu,Fe)12Sb4S13) and enargite (Cu3AsS4). The largest source of copper is from porphyry ore deposits in which one or a combination of the minerals occurs. A typical copper sulphide ore contains various levels of iron sulphide types that generally include pyrite (FeS2) and pyrrhotite (Fe1-xS). Often gold and silver are present which may either be associated with the sulphides or are free. The gangue particles can consist of a range of silicate minerals from quartz to talc and clays. Item Specification CR2O3: 42% Basis: 40% Min CR/FE Ratio: 1.35:1 MGO: 14% Max AL2O3: 16% Max SIO2: 10% Max P: 0.01% Max S: 0.01% Max Size 0-2 MM: (95% Min) Moisture at 105C or 110C: 8% Max
Iron Ore, Magnetite And Hematite.
Iron Ore Magnetite and Hematite.
Iron ore (magnetite and hematite), copper ore.Export and import ( trading) .
Magnetite and hematite iron ore.
Magnetite and hematite iron ore.
Hematite And Magnetite Iron Ore, Manganese Ore.
Iron Ore, Magnetite and Hematite..
Iron ore magnetite hematite.
Iron ore, magnetite iron ore and hematite iron ore.
We supply coltan ore. Price is negotiable. Specific terms are negotiable.
Iron ore magnetite copper ore and concentrate nickel ore and concentrate latrite nickel ore.
Iron Ore, Magnetite Iron Ore And Hematite Iron Ore.
Iron ore, magnetite iron ore and hematite iron ore.
Our High-grade Iron Ore from South Africa is renowned for its exceptional purity and consistent quality, making it an ideal choice for steel production and various industrial applications. Meticulously extracted and processed, our iron ore ensures optimal performance and reliability in every use, meeting the stringent standards of the global market.