GEOL 1001 Lecture Notes - Lecture 3: Pumice, Crystallization, Conchoidal Fracture
Document Summary
Mineral any naturally occurring inorganic solid that possesses an orderly crystalline structure and a definite chemical composition that allows for some variation. Minerals exhibit 5 characteristics: naturally occurring, generally inorganic, solid substance, orderly crystalline structure, define chemical composition that allows for some variation. A rock is any solid mass of mineral, or mineral-like, matter that occurs naturally as part of our planet. Most rocks are aggregates of several different minerals. Some rocks are composed of nonmineral materials like volcanic rocks obsidian and pumice. Quartz: semi-precious gem, used for making glass, glass is not mineral, used for precision instruments. Mica: windows, insulators on electronics, sparkle. Copper ones: plumbing, electronic wires, much more. A rock is made of 2 or more minerals (can be the same mineral) minerals are the building blocks of rock. How do minerals form: precipitation of mineral matter from a solution. Water solution containing dissolved material matter: solidification of crystallization of molten rock.
