How are minerals formed in igneous and metamorphic rocks?

The basic source of minerals in the rocks is the magma (from beneath the earth's crust ) which contains both metallic (gold, silver, platinum, Fe, Al, Cu, Pb, Ni, Sn) and non-metallic (sulphur, nitrate, phosphate) minerals. read more

Start studying Minerals; Igneous, Metamorphic, and Sedimentary Rocks. Learn vocabulary, terms, and more with flashcards, games, and other study tools. read more

Metamorphic rocks form when pre-existing rocks (igneous, sedimentary, or metamorphic) are exposed to high temperatures and pressures under the Earth's surface. Some pre-existing minerals, unstable at the higher temperature and pressure conditions, transform into new minerals. read more