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Chrysolite is from the Greek chrysolithos meaning a precious stone of golden color. It comes from chryso meaning precious things made of gold, and lithos meaning of building stones. Peridot is the gemstone form of Olivine or Chrysolite and possesses a much richer green color. Mg-rich Olivine has been discovered in meteorites, on the Moon, and on Mars. Chrysolite and Olivine in general are a very abundant, but gem quality Peridot is rather rare.
Soluble chromate(VI) salts give yellow solutions, but lead(II) ions give a yellow ppt. of lead(II) chromate(VI) and silver ions a dark red ppt. of silver chromate(VI). A few drops of silver chromate is used as an indicator when titrating chloride solutions with silver nitrate solution in neutral solution.he chemistry of chromium (principal oxidation states +3 and +6) is described with particular emphasis on chromium(III) complex ions with ligands such as water, ammonia and chloride ion, and the chromium(VI) oxyanions i.e. chromate(VI) and dichromate(VI) including the latter's redox reactions.