Rocks - Minerals

igneous rocks - form from cooling magma: intrusive or plutonic - cool underground, form visible mineral crystals; extrusive, volcanic, cool on the surface, small/no visible mineral crystals

sedimentary rocks: form on surface of the Earth so reveal information about environment, often made of fragments weathered and eroded from older rocks, often layered sometimes contain fossils

metamorphic rocks: changed by heat and/or pressure, contact metamorphism from heat of magma, hydrothermal metamorphism from hot, mineral-rich water, regional metamorphism from burial or plate tectonic mountain building, sometimes foliated (flaky), sometimes folded; fault metamorphism from pressure at faults, serpentinite

Rock cycle (fig. 2-18)

What are the differences between a rock and a mineral?

What are the three basic types of rocks? How does each type form? How are the rock types related to each other (processes)?

Compare and contrast the three types of metamorphism in terms of: conditions (heat and/or pressure), source of heat and/or pressure, any distinctive rocks or textures formed.

Be able to draw and explain the rock cycle.

Be able to identify rock samples as igneous, sedimentary, or metamorphic.