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Identifying Minerals

Identifying Minerals. Pick your favorite mineral property. Make a bumper sticker saying ie :. You Rock— Moh Gives You A 10. Color. caused by the presence of other trace elements. Luster. The way a mineral reflects light Metallic Glassy Adamantine Silky Pearly Pitchy Waxy Dull.

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Identifying Minerals

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  1. Identifying Minerals

  2. Pick your favorite mineral property • Make a bumper sticker saying ie: You Rock—Moh Gives You A 10

  3. Color • caused by the presence of other trace elements.

  4. Luster • The way a mineral reflects light • Metallic • Glassy • Adamantine • Silky • Pearly • Pitchy • Waxy • Dull

  5. Texture • Describes how a mineral feels to touch Smooth Rough Ragged Greasy Soapy

  6. Streak • Color of a mineral when it is broken up and powdered.

  7. Hardness • Measures how easily a mineral can be scratched. • “Moh’sHardness Scale”

  8. Cleavage and Fracture • Atomic structure determines how a mineral will break. • Minerals break along weak atomic bonds. • Cleavage occurs if a mineral breaks along a plane (flat surface)

  9. Cleavage and Fracture • Fracture occurs when minerals break with rough or jagged edges. • Conchoidal fracture results in a circular pattern.

  10. Density and Specific Gravity Density = Mass/Volume Specific Gravity • Ratio of weight of a substance to the weight of an equal volume of water at 4°C.

  11. Mineral uses Ores • Contain a useful substance that can be mined. Ex: hematite mined for Fe, Bauxite for Al

  12. Mineral uses Gems • Minerals that are prized for their rarity and beauty. • Rubies and Emeralds are more valuable than diamonds. • YouTube - The Diamond process from the Mine to the Market

  13. Bumper Sticker • I Dig Rocks…Check Out My Lustre • You Rock—Moh says you are a 10

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