A rose colored mineral specimen is given to you for identification.It has a cochoidal fracture,no streak,and a non metallic luster.

A rose colored mineral specimen is given to you for identification.It has a cochoidal fracture,no streak,and a non metallic luster.It has can be scratched with a steel file,but not with glass or a pocketknife blade.Its mass is 53 grams.You place it in water and it displaces a volume of 20 cubic centimeters of water.(a)What is the hardness of this mineral?explain your answer.