Physics, 15.07.2019 05:10, kibyrd14

It is science time! you and your classmates have been challenged to identify six minerals. you begin with a dull, white sample that is easily scratched with a fingernail. what is the mineral?

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Physics, 22.06.2019 11:50, sillslola816oxb5h7

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It is science time! you and your classmates have been challenged to identify six minerals. you begi...