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OpenStudy (anonymous):
What gives the gem amethyst its purplish color?
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OpenStudy (anonymous):
Amethyst is a purple variety of quartz (SiO2) and owes its violet color to irradiation, iron impurities so its iron
OpenStudy (anonymous):
iron
OpenStudy (shrutipande9):
hi! welcome to openstudy! we here on openstudy try to segregate the subjects so that people get a better response...next time try posting this ques in chemistry for better answers..:)
OpenStudy (beccaboo333):
Welcome to OpenStudy.
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