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Minerals Minerals touch our lives in hundreds of ways everyday-we could not live without them!

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Presentation on theme: "Minerals Minerals touch our lives in hundreds of ways everyday-we could not live without them!"— Presentation transcript:

1 Minerals Minerals touch our lives in hundreds of ways everyday-we could not live without them!

2 We use minerals to Growing food, tractors, water pipes, electrical wiring, refrigerator, radio, toaster, lamp, light bulbs, sheets, towels, clothing, make up, fireworks, soap and toothpaste, windows; cereal bowls and dishes, glasses and cups, faucets, doorknobs, electronics; cars, trucks, ships, and railroad cars; bricks, tiles, siding, and houses-Every part of our lives depends on minerals.

3 We use 2 billion tons of minerals each year in the US. Thats 10 tons of minerals for every man, woman, & child! Minerals must be mined from the Earth. But they are nonrenewable resources, so once we use them up, we will have no more to use.

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5 There are over 3000 minerals. The harder a mineral is to find or get out of the Earth, the more expensive it will be. Some pure elements make up minerals. Example: gold, platinum. Minerals form everywhere.

6 How minerals form Through crystallization of melted materials. (as it cools crystals grow) Through crystallization of materials dissolved in water. (water evaporates or cools leaving minerals behind) Generally happens slowly

7 To be a mineral, something must be……

8 naturally occurring

9 inorganic It did not come from a living or once living thing

10 solid

11 Have a crystalline structure Symmetrical arrangement of atoms Atoms determine structure which determines all properties about the mineral.

12 Crystalline NOT Crystalline

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14 Mineral Properties Each mineral has its own unique properties. They are used to identify the mineral.

15 Color

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17 Luster-ability to reflect light- metallic nonmetallic

18 Density A measurement of how tightly packed the atoms are.

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21 sity.gif World Population Density

22 Cleavage OR Fracture- ability to be split along a flat surface (weaknesses in bonds) when they dont break apart easily.

23 Crystal systems- crystal shape, outer appearance, forms as crystal grows atom by atom.

24 Hardness A measurement of how much a mineral resist being scratched

25 Streak The color of a minerals powder

26 Special Properties –Fluorescence –Magnetism –Radioactivity –Reactivity –Conduct electricity


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