Geology Lab Exam 1 UARK | Strategies Review of Key Quizzes with 100% Correct Answers | Latest Update 2026 | 2027 (Rated A) Quiz_________________? -Coarse Grained (Mineral grains are large enough to see with unaided eye.) -INTRUSIVE texture -

Geology Lab Exam 1 UARK | Strategies Review of Key Quizzes with 100% Correct Answers | Latest Update 2026 | 2027 (Rated A) Quiz_________________? -Coarse Grained (Mineral grains are large enough to see with unaided eye.) -INTRUSIVE texture - ANSWER Phaneritic Texture Quiz_________________? -Fine Grained (Minerals grains are too SMALL to be seen with unaided eye). -EXTRUSIVE texture - ANSWER Aphanitic Texture Quiz_________________? -Lava contained large amounts of gas (like CO2 ). -EXTRUSIVE texture - ANSWER Vesicular Texture ("frothy") Quiz_________________? -No mineral grains to be seen. -EXTRUSIVE texture - ANSWER Glassy Texture Quiz_________________? -Often a mixture of fine and coarse grained. (2 different (at least) sized mineral grains.) -2 RATES OF COOLING -Intrusive/Extrusive Texture - ANSWER Porphyritic Texture Quiz_________________? -Rock is made of fragments of volcanic glass, mineral crystals, or lithic (rock) fragments. Much of the rock is ash. -EXTRUSIVE texture - ANSWER Fragmental Texture (Pyroclastic) Quiz_________________? -Smell -Taste -Acid Reaction -Magnetism -Feel -Flexibility -Elasticity -Conchoidal Fracture -Striations -High Density - ANSWER Special Properties Quiz_________________? -Solid -Naturally occurring -Inorganic (usually) -Definite, but not fixed, chemical composition -Ordered crystalline structure - ANSWER What is the definition of a mineral? Quiz_________________? -VERY LARGE crystals (wider than pinky finger) -INTRUSIVE texture - ANSWER Pegmatitic Texture Quiz_________________? 1. Grain size 2. Grain shape 3. Grain orientation - ANSWER Rock texture describes: Quiz_________________? 1. Solid 2. Naturally Occurring 3. Inorganic (usually) 4. Definite, but not fixed, Chemical Composition 5.Ordered Internal Arrangement (Crystalline Structure) - ANSWER What are 5 things a Mineral must be? Quiz_________________? 1. Weathering 2. Transport 3. Deposition 4. Lithification/cementation - ANSWER What are the four steps to making a Sedimentary Rock? Quiz_________________? 1) Change in rock density 2) change in mineral size 3) change in mineral grain orientation 4) change mineralogy of rock - ANSWER What are the 4 ways a rock can change when it undergoes metamorphism? Quiz_________________? 1) Heat 2) Pressure 3) Chemically Active Fluids (H20), CO2) - ANSWER The three agents that cause Metamorphism: