C.K.K.K.+4.2

toc =**Section 2** (4-2) How Minerals Form=

**Vocabulary**
solution- a mixed thing which contains metals vein- a mineral that is narrow and is different from other minerals near this

**Process That Form Minerals**

 * There are two ways to form a mineral.
 * One way is to through crystallization of melted materials.
 * The other way is through crystallization of materials dissolved in water.

**Minerals From Magma**

 * When magma/lava cools to solid state, they form crystals.
 * The size of crystal depends on several factors.
 * Such as amount of gas magma contains, rate which magma cools,and the chemical composition of magma.
 * Slower the magma cools, the larger the crystals grows.
 * So faster the magma cools, the smaller the crystals grows.
 * The more crystal is closer to the surface, the faster the magma cools.

**Minerals From Hot Water Solutions**

 * Sometimes, the mineral dissolves in hot water.
 * The dissolved water makes solutions.
 * When the solution cools, the element and compounds leave the solutions and minerals crystallize.
 * The pure metal that crystallize underground from hot water solutions often form veins.
 * Many minerals form from solutions at places where tectonic plates spread apart along the mid-ocean ridge.

**Minerals Formed by Evaporation**

 * Minerals can also form through evaporation
 * they form when hot-water solution's crystallize

**Location of Minerals**

 * Mineral deposits can also form in U.S.
 * in the southwest, midwest, and gulf coast
 * the earth's crust also has minerals in it

**Diagram**
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