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Rocks and Minerals

How are metamorphic rocks formed heat and pressure
What are the 3 types of rocks sedimentary, igneous, metamorphic
how are igneous rocks formed cooling and solidification of lava or magma
how are sedimentary rocks formed weathering, erosion, deposition, compaction and cementing of sediments
What is the rock cycle a cycle that shows the process or processes of how 1 type of rock can be changed into any other type of rock
what is a rock a solid that is composed of 2 or more minerals
what is a mineral a naturally occurring, inorganic, solid with definite chemical composition and crystalline structure.
What test do we use to identify minerals? color, luster, streak, hardness, specific gravity, cleavage or fracture
what are the specialty tests used to identify minerals? magnetic, florescence, radioactive, reacts with HCL
why is color not the best test to identify a mineral? some minerals depending on where they are formed will have different elements in that particular mineral causing the same mineral to have different colors. Quartz is an example
what is streak the color of the power of the inside of the mineral
how is hardness tested using tools or minerals with known hardness
what is the difference between cleavage and fracture? Cleavage break along clean fat surfaces, Fracture does not
Created by: 1303280496418279