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Molecular formula : MW : CAS :
nature : FeSO4 7H2O called melanterite. An iron minerals. Light green. Sometimes dark gray or dark gray. Monoclinic. CARICOM was rhombohedral crystal shape. Regular into dense network of small bell-like emulsion or body. Glass luster. Clearly cleavage. Density 1.8-1.9. Hardness 2. There Contributing Factors. Yifeng into powder, and easily oxidized and turned into brown. Preparation for the iron blue and ink. Fur is also used to the staining and other hardened cement.
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