If a substance is a mineral, how could you identify what type of mineral it is?

Question

help me!!

Answer 1

one way is by density
measure what it weighs in air.
measure the volume of water it displacees if sunk.
mass =weight/g (of course if you use scale that is not needed}

density = mass/volume
lot of other ways, color, hardness .....

Answer 2

thank you