uses of minerals earth science/es 3.3 uses of minerals.pdf · c. useful gems-diamonds are used in...
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Uses of Minerals
3.3
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I. GemsA. Properties of Gems
- Gems or gemstones – are highly prized minerals because they are rare and beautiful
- Most gems are a special variety of a particular mineral
- They are clearer, brighter or more colorful than common samples of that mineral
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Birthstones
January - GarnetFebruary - AmethystMarch - AquamarineApril - DiamondMay - EmeraldJune - PearlJuly - Ruby
August - PeridotSeptember - SapphireOctober - OpalNovember - Topaz, CitrineDecember - Blue Topaz
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B. Important Gems
- Cullinan 1 or Great Star of Africa – a Diamond that is part of the British Monarchy’s crown jewels
- Blue Hope Diamond – reputation for bring its owner bad luck
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C. Useful Gems
- Diamonds are used in industry in cutting tools because of their hardness
- Rubies are used to produce specific types of laser lights
- Quartz crystals are used in electronics as timepieces
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II. Useful Elements in Minerals
A. A mineral or rock is an ore if it contains a useful substance that can be mined as a profit
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B. Vein Minerals
- A weakness in rocks include natural fractures or cracks, and faults
- Mineral deposits that fill in the open spaces or cracks in rocks created by the weakness are called vein mineral deposits
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C. Minerals Containing Titanium
- Titanium is a durable, non-toxic, lightweight, metallic element derived from mineral that contains this metal
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D. Uses of Titanium
- Titanium is used in automobile body parts
- Aircrafts
- Eye glass frames
- Sports equipment
- Wheel chairs