RLNI+4.2

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Vocabulary

 * Solution**: mixture in which one substance dissolves in another
 * Vein**: narrow channel or slab of a mineral that is much different from the surrounding rock
 * Crystallization**: process where atoms are arranged to form a material with crystal structure

Outline

 * Process that Form Minerals
 * crystallization of melted materials
 * crystallization of materials dissolved in water
 * Minerals from Magma
 * magma cools slowly if deep below surface
 * leads to large crystals
 * magma cools fast if close to surface
 * leads to small crystals
 * Minerals from Hot Water Solution
 * the steps of minerals forming in hot water solutions
 * first, the ocean water goes down the earth's surface
 * then, once it comes in contact with the magma, it gets heated to a very high temperature
 * the heated water dissolves minerals in the crust
 * the water starts to go upwards and shoot out from the chimney
 * the hot solution hits the cold water
 * the solution starts to cool down and goes down deep to the ocean floor
 * Minerals formed by Evaporation
 * thick deposits of the mineral halite form over millions of years
 * when the ancient seas slowly evaporated
 * Where Minerals are Found
 * earth's crust is made up of mostly rock- forming minerals
 * valuable minerals are near areas in volcanic activity and mountain building