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Popular Gemstones

Popular Gemstones. Pat Semmes. Introduction. Made of Minerals One type of mineral can form several types of gemstones Some are rare, other common. Found Worldwide One type of gemstone can have several names. Quartz. Occurs in crystals Very common mineral Examples: amethyst, citrine.

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Popular Gemstones

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  1. Popular Gemstones Pat Semmes

  2. Introduction • Made of Minerals • One type of mineral can form several types of gemstones • Some are rare, other common • Found Worldwide • One type of gemstone can have several names.

  3. Quartz • Occurs in crystals • Very common mineral • Examples: amethyst, citrine

  4. Corundum • Aluminum oxide material • Found in USA, India, South Africa • Examples: ruby, sapphire

  5. Summary

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