Minerals
What do minerals combine to form?
Rocks
What is the most glassy igneous rock?
Obsidian
Grain sizes
Clay, silt, sand, pebbles, cobbles, and boulders
How are metamorphic rocks formed?
Heat and pressure
How many minerals can be in one rock?
One or more
How do igneous rocks form?
The cooling and solidification of lava or magma
How are they formed?
Compaction and cementation of sediments
Parent rock of quartzite
Quartz
How are minerals classified?
Hardness, luster, color, cleavage or fracture, and composition
What is the rock basalt composed of?
Plagioclase feldspar, pyroxene, olivine, and amphibole
What rocks can turn into sedimentary rocks
All rocks can turn into sedimentary rock
What is regional metamorphism?
Heat and pressure increase
What is the mineral composed of only carbon?
Graphite
How would the rock granite be created?
Created by the cooling and solidification of magma inside of the earth
What are coarse crystals?
A texture with crystals larger than 1 mm
What is contact metamorphism?
Heat
What is the mineral with a harness of 6 and has a color of white to pink?
Potassium feldspar
What does vesicular mean and how does this occur?
This is a texture of a rock that has gas pockets because it has cooled so quickly
Clastic rock with angular fragments
Breccia
Coarse nonfoliated rock made of various minerals and has distorted or stretched pebbles
Metaconglomerate