Geology Chapter 3- Minerals

What is the definition of minerals? Naturally occurring, Inorganic, Solid, Ordered internal molecular structure, Definite chemical composition What is the definition of a rock? A solid aggregate or mass of minerals What is the chemistry of minerals? Atoms, Charged atoms (ions), and Isotopes What consist of an atom? Protons, neutrons, Read more…

Geology minerals

finger nail hardness 2.5 steel nail hardness 5.0 glass plate hardness 5.5 Cleavage the tendency of a mineral to split consistently along certain planes where the atoms are weakly bonded. Fracture – no definite planes of weakness in the bonding of the atoms so the mineral just breaks along irregular Read more…

eggs mini test 3(geology, minerals, & mining)

geology study of earths physical features, processes, and history why study geology? -controls distribution of mineral resources -controls location of many geological hazards earths internal layering -CRUST:thin outer layer rose to top -fairly dense rock stayed in the middle:MANTLE -heavy metals sank to the CORE(iron and nickel) true layers were Read more…

Geology test (Chapter 4-6)

Igneous Rock formation Solidification of melt- heat prevents them from completely forming- 650- 1200 Extrusive Above earths surface heat is lost rapidly Intrusive Melt infuses already formed rocks Volatiles Interfere atomic bonds Flux melting Melting with volatiles Magma groups Felsic, intermediate, mafic, ultramafic Aphanitic Small minerals- extrusive Phaneritic Easily visible Read more…

Mineral Geology

Identify the two groups of minerals Silicates- Contains silicon and oxygen – 90% of earth’s crust – Combine with elements such as Al, Fe, Mg, and K Non-Silicates- Do not contain combination of Si and O – May contain C, O, F, S – Classes of Non-Silicates – Native elements: Read more…

Geology Test #2 Study Guide

True or False: We are living during the third largest extinction event in geologic history? True A pair of metamorphic rocks with biochemical origins are: Marble and Anthracite Detrital sedimentary rocks are classified (named) based on the: Grain sizes of the detrial particles. The appearance and rapid proliferation of hard Read more…

Chapter 11: Geology Minerals and Mining

Coltan Tantalite found with another mineral (columbite), used in cell phones Geology The study of earth’s history through its rocks, soils, and sediments – In the LITHOSPHERE. Includes the physical features and characteristics, and physical processes Rock Cycle Sequence of events in which rocks are formed, destroyed, altered, and reformed Read more…

Geology Ch. 5- Minerals

ionic bond oppositely charged ions attract to produce a neutral chemical compound- weak (velcro) covalent bond sharing of electrons to achieve a stable atomic structure- strong (rope) metallic bond electrons are shared between all atoms van der waals bond opposite charges occuring on opposite sides of a sheet- weak (usually Read more…

Geology Chapter 2: Minerals

Mineral A *naturally occurring*, *inorganic*, *crystalline solid* that has a *specific* chemical composition Mineralogy The *study* of minerals All minerals have a ________ _________? Crystalline structure Rocks Naturally formed aggregates of minerals or mineral-like substances Atoms Smallest, electrically neutral assemblies of energy and matter than we know exist in the Read more…

Geology Identifying Minerals

Hematite Metallic (red brown, silver, or black color; red brown streak; H = 1-6.5; heavy; some varieties show one-way cleavage) Magnetite Metallic (black color; black streak; H = 6; heavy; magnetic; equidimensional grains) Pyrite Metallic (brass-yellow color; black streak; H = 6-6.5; often striated cubic crystals) Potassium feldspar (K-spar) Non-metallic Read more…

Geology- Minerals and Igneous

What 5 requirements must be met for a substance to qualify as a mineral? 1. All minerals are solid objects 2. Must be naturally occurring 3. All minerals must be inorganic 4. When pure, all minerals are homogeneous 5. Patterned atomic structure Why do each of the below listed substances Read more…

Minerals-geology

Geology The science that deals with the physical history of the earth, the rocks of which it is composed, and the physical,chemical, and biological changes that the earth has undergone or is undergoing. geologist A scientist who studies the forces that make and shape the planet earth. Mineral A naturally Read more…

Geology: Minerals

atom building block of matter element a pure substance consisting of one type of atom cation more protons than electrons (net charge is positive) anion more electrons than protons (net charge is negative) ionic bond an attractive force that forms between a cation and an anion when they get close Read more…

Geology Ch. 4 ( Minerals and Rocks)

Mineralology the branch of geology that studies the composition, structure, appearance, stability, occurrence, and associations of minerals. Mineral naturally occurring, solid crystalline substance, usually inorganic, with a specific chemical composition. Atom the smallest unit of an element that retains the physical and chemical properties of that element. Isotopes atoms of Read more…