ELAJ+4-2

toc

back to homepage

=Section 2 How Minerals Form=

Vocabulary:

 * solution** - a mixture of one substance dissolved in another, and usually is in a liquid.
 * vein -** a mineral, in a narrow channel, that is way different from the surrounding rock.

Outline:
where minerals are found**
 * Process That Forms Minerals**
 * In general minerals from in two ways
 * crystallization of melted material
 * crystallization of materials dissolved in water
 * Minerals From Magam**
 * Minerals form as hot lava that cools inside the crust
 * Many things affect the size of the crystal
 * The rate the magma cools
 * The amount of gas in the magma
 * The chemical compostion of the magma
 * Minerals From Hot Water Solutions**
 * Hot water solution minerals form in a multi-step process
 * First, water goes inside the crust dissolving the minerals
 * Second, the magma heating up the water
 * Third, water comes out and cools making crystals
 * Many of these minerals form where techtonic plates split
 * Minerals formed by Evaporation**
 * Minerals can also be formed by evaporation
 * Several useful minerals are formed by evaporation
 * halite
 * gypsum
 * calite
 * minerals containing potassium**
 * the crust is made mostly of the common rock froming minerals