Important ores and their formulas (calcination and roasting)🌚

Описание: Here are some important ores and their chemical formulas:

Oxide Ores
1. Hematite (Iron Ore): Fe2O3
2. Magnetite (Iron Ore): Fe3O4
3. Chromite (Chromium Ore): FeCr2O4
4. Rutile (Titanium Ore): TiO2
5. Cassiterite (Tin Ore): SnO2

Sulfide Ores
1. Galena (Lead Ore): PbS
2. Sphalerite (Zinc Ore): ZnS
3. Pyrite (Iron Ore): FeS2
4. Chalcopyrite (Copper Ore): CuFeS2
5. Molybdenite (Molybdenum Ore): MoS2

Silicate Ores
1. Bauxite (Aluminum Ore): Al2O3·2H2O (with silicates)
2. *Talc*: Mg3Si4O10(OH)2
3. *Asbestos*: Ca2(Mg,Fe)5Si8O22(OH)2

Carbonate Ores
1. Limestone (Calcium Ore): CaCO3
2. Dolostone (Magnesium Ore): CaMg(CO3)2
3. Malachite (Copper Ore): Cu2CO3(OH)2

Halide Ores
1. Rock Salt (Sodium Chloride Ore): NaCl
2. Sylvite (Potassium Chloride Ore): KCl

Phosphate Ores
1. *Apatite*: Ca5(PO4)3(F,Cl,OH)
2. *Phosphorite*: Ca5(PO4)3(F,Cl,OH) (with other minerals)

These ores are important sources of various metals and minerals, and are used in a wide range of industries, including mining, metallurgy, and manufacturing.