Mineral crystals of quartzbiotite micaand amphibole are produced primarily by the what?

Mineral crystals of quartz, biotite mica, and amphibole are primarily produced by the process of crystallization from molten rock or magma. As magma cools, different minerals crystallize at varying temperatures, leading to the formation of these minerals. Additionally, they can also form through metamorphic processes or in sedimentary environments under specific conditions.