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Pure ZnO is a white powder, but in nature it occurs as the rare mineral zincite, which usually contains manganese and other impurities that confer a yellow to red color.

Crystalline zinc oxide is thermochromic, changing from white to yellow when heated in air and reverting to white on cooling

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Description

Zinc is a chemical element with the symbol Zn and atomic number 30. Zinc is a slightly brittle , Zinc has an electron configuration of AR and is a member of the group 12 of the periodic table. It is a moderately reactive metal.

Synonyms: Zinc white, calamine, philosopher’s wool, Chinese white, flowers of zinc

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