Where do quartz form?

Answer 1

ALL minerals form below the earth's crust from magma. They can then be uplifted to the surface. Quartz is one of the first to form out of the magma.

Answer 2

Quartz typically forms in igneous, metamorphic, and sedimentary rock environments. It is commonly found in veins and pegmatites in igneous rocks, as well as in hydrothermal veins in metamorphic rocks. In sedimentary environments, quartz can be found in sandstone and shale formations.