A mineral crystallizes from magma deep inside earth.

Which characteristics can be determined given only the information above.

A) luster

B) streak

C) crystal size

D) crystal structure

The correct answer is option C

A mineral forms inside the earth by the temperature and high pressure and when it gets under the rock and cools down forms crystals of different size.

The time taken for the formation of crystal decide the size of the crystals formed.

The magma gets cooled under the different-different kinds of rocks and forms the different types and sizes of crystals.

Answer

(C) Crystal size