Minerals are typically formed when molten rock, or magma, cools, or by separating out of mineral-rich water, such as that in underground caverns. In general, mineral particles are small ...

There would be no bright and colorful fireworks without rocks and minerals. A firework is produced by launching a shell containing fuel and a color mix high into the air, where it explodes.

Petrology is the study of rocks - igneous, metamorphic, and sedimentary - and the processes that form and transform them. Mineralogy is the study of the chemistry, crystal structure and physical ...