a rose colored mineral specimen is given to you for identification . it has a conchoidal fracture, no streak, and a non metallic luster . it can be scratched with a steel file, but not with glass or a pocketknife blade . it has no streak. its mass is 53 grams .you place it in water and it displaces a volume of 20 cubic centimeters of water . what is the hardness of this mineral?
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