EAPS 111 Exam 2|60 Practice Test with answers| Updated 2024

What is a mineral? - ️️A naturally occurring, inorganic, crystalline solid with a relatively consistent composition - A solid inorganic substance of natural occurrence - Solid, natural, inorganic - Ordered internal structure - Specific chemical composition 2. What are the major kinds of mineral families? - ️️-SILICATES -CARBONATES -crystalline: solidified from melt; interlocking minerals that grown together at high temps -clastic: cemented grains or clasts of other rocks; consists of other rocks at low temps 3. What kinds of elements are found in the crust and mantle and what are the really major components? - ️️Crust: 1. Oxygen 2. Silicon num; most abundant transition metal: iron, and some abundant metals - Silicon and Oxygen are most concentrated in the Earth primarily as silicate minerals in the crust and mantle 4. What are silicate minerals and why are they important? - ️️Minerals that contain silicon-oxygen tetrahedral; the most common mineral group on Earth 5. What basic structure do Si and O take in silicate minerals? - ️️-single chain -internal structure yields 2 cleavage planes @90 degrees