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Quartz!

Quartz!. quartz!.

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Quartz!

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  1. Quartz!

  2. quartz! Quartz is one of the most well-known minerals on earth. It occurs in basically all mineral environments, and is the important constituent of many rocks. Quartz is also the most varied of all minerals, occurring in all different forms, habits, and colors. There are more variety names given to Quartz than any other mineral.

  3. 1. Properties of Quartz • Hardness of 7 • Specific Gravity: 2.6 – 2.7 • Vitreous Luster • No cleavage • Hexagonal Crystal System • Composition: SiO2 • Most common mineral • Very high chemical neutrality.

  4. 2. Industrial Uses of Quartz • Sandpaper • Polishes • Soaps • Bearings for precision instruments • Optics • Heat resistant materials

  5. 3. Ornamental Uses of Quartz • Jewelry • Crystal ornaments • Gemstones • Glassware

  6. 4. Forms of Quartz • Rock Crystal

  7. 4. Forms of Quartz • Amethyst

  8. 4. Forms of Quartz • Onyx

  9. 4. Forms of Quartz • Jasper

  10. 4. Forms of Quartz • Tiger’s Eye

  11. 4. Forms of Quartz • Geodes

  12. 4. Forms of Quartz • Opal

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