Minerals
저자: AJ Getz

1. Minerals are used in tons of things.
1.1. Pencils
1.2. Phones
1.3. Lightbulbs
1.4. Tires
1.5. Paints
2. When 2 or more minerals forge together they make a rock.
3. The most common mineral on earth is quartz.
4. When magma cools it forms huge mineral crystals.
5. Most minerals aren't found on earths crust
6. deeznutz
7. Examples
7.1. Diamond
7.2. Fluorite
7.3. Ruby
8. Identified by
8.1. Properties
8.1.1. Hardness
8.1.1.1. Hardness goes of a scale from 1-10 called "Mohs Scale".
8.1.1.1.1. Mohs hardness scale.
8.1.2. Luster
8.1.2.1. Dull, Pearly, Glassy, Metallic
8.1.3. Color
8.1.3.1. Varies.
8.1.4. Reaction with Acid
8.1.4.1. Drop acid on mineral and see what it does
8.1.5. Streak
8.1.5.1. Shows the color of the streak when scratched.
8.1.6. Transparency
8.1.6.1. If you can see through it or not.
8.1.7. Light Refraction
8.1.7.1. If light bounces off of it.
8.1.8. Crystalline Shape
8.1.8.1. The shape of the rock/mineral, Irregular, Cubic, etc
9. A mineral is natural, its not man made.
10. There are over 3,000 types of minerals.
11. Rock formations:
11.1. Metamorphic
11.1.1. Gneiss
11.1.2. SandStone
11.2. Igneous
11.2.1. Granite
11.2.2. Obsidian
11.3. Sedimeantry
11.3.1. LimeStone
11.3.2. Coal