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 vitriolic ore is a type of mineral deposit that contains...
Phosphate rock is a general term that refers to rock with high concentration of phosphate minerals, most commonly of the apatite group. Phosphate is also used in animal feed supplements, food preservatives, anti-corrosion agents, cosmetics,...
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