ESC 1000 Chapter Notes - Chapter 16: Igneous Rock, Sedimentary Rock, Mohs Scale Of Mineral Hardness
Document Summary
Conditions of a mineral: naturally occurring 2. A substance that cannot be reduced into a similar substances. A substance formed by the chemical combination of two or more elements. Variations in the chemical composition of a mineral can change the color dramatically. The color of a mineral in powdered form. Quality of light reflected from the surface of a mineral. Rubbing a mineral against a material of known hardness. Is the tendency of a mineral to break along planes of weak bonding. Solid mass of mineral matter that occurs naturally. Texture can be coarse grained, fine grained, glassy and por- phyritic. Water, wind and ice are capable of moving rocks. When temperature freezes at night and rises during the day. Water expands when frozen which forces rocks open. Roots of plants grow into cracks and force cracks open. Changing of sediment into rock by filling spaces around the sediments with chemical percepi- tates of minerals.
