Answer:
c. crystallization of melted materials
Step-by-step explanation:
- A mineral is composed of the various rock-forming crystals and hee crystals tend to recrystallize through the process of evaporation and the deposition of sediments that are bought and deposited from within the earth and these make up most of the constituents of the crustal rocks.
- As they are naturally occurring in a pure form. There physical and chemical properties also plays an important role in the formation of crystal of the mineral. The hardness, opacity, and color are all dependent on the inorganic and organic constituents of the rocks.