1. Minerals PowerPoint By: Angelique Perez & Stephanie Gonzalez 3 rd period.

2. Diamonds Diamond forms at extremely high temperatures and pressures, conditions that are only possible very deep in the Earth’s crust or even the upper mantle. Large diamonds, particularly large diamonds without flaws, are extremely rare. These flawless diamonds are very valuable as gemstones. The vast majority of diamonds are small, flawed and colored by dark impurities. These impure diamonds are used in industrial uses. Streak, hardness

3. Copper Copper is a mineral. As a mineral, natural copper (also called native copper) is relatively rare. Most copper in nature is found in minerals associated with sulfur, or in the oxidized products of these minerals. Hardness

4. Nitrogen Nitrogen is the most abundant gas in the atmosphere: 78% of the Earth’s atmosphere is nitrogen, 21% oxygen, and 1% other gases like carbon dioxide, argon and water vapor. Nitrogen is a gas that is relatively non- reactive, non-flammable, colorless, and odorless. It is an element and its symbol is N. DENSITY

5. Garnet Garnet is ground to a variety of sizes to be used as an abrasive. Garnet sandpaper was the original application of this mineral. It is also used to make a number of similar products, including sanding belts, discs, and strips. Today, the vast majority of garnet is used as an abrasive blasting material, for water filtration, in a process called water jet cutting, and to make abrasive powders. HARDNESS

6. Gold Gold: Used in dentistry and medicine, in jewelry and arts, in medallions and coins, in ingots as a store of value, for scientific and electronic instruments, as an electrolyte in the electro-plating industry. South Africa has about half of the world’s resources. HARDNESS!

7. Iron Core About 98% of iron ore is used to make steel— one of the greatest inventions and most useful materials ever created. While the other uses for iron ore and iron are only a very small amount of the consumption, they provide excellent examples of the ingenuity and the multitude of uses that man can create from our natural resources FRACTURE