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Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
Basic Properties Of Minerals
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Basic Properties Of Minerals

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Based on McDougal Littell Earth Science series

Based on McDougal Littell Earth Science series

Published in: Technology, Spiritual
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  • 1. Properties of Minerals Earth’s Surface 2.2 (pg. 51-57) Ms. Wells, Science
  • 2. Properties of Minerals: Why do we care?
    • Property – characteristic, quality or trait of something
    • Used to IDENTIFY a mineral
    • Is it salt? Is it quartz? Is it talc? Who knows! TEST the properties to find out!
  • 3. Properties of Minerals: Which are the most important?
    • Streak
    • Luster
    • Cleavage or Fracture
    • Density
    • Hardness
  • 4. Appearance Property: Streak
    • Streak – color of the powder a mineral leaves behind when you scrape it across something
    • Shows true color better than looking at a whole mineral
    • Use “streak plate” made of porcelain
  • 5. Appearance Properties: Luster
    • Luster – the way a mineral reflects light
      • (QUALITATIVE OBSERVATION  )
    • Luster Terms:
      • Metallic – shiny like a metal
      • Non metallic – not shiny like metal
        • Oily – feels or looks greasy
        • Glassy – shiny like glass
        • Dull – plain, earthy
  • 6. Metallic Luster
  • 7. Nonmetallic Luster
  • 8. Breaking Properties: Cleavage or Fracture
    • Cleavage – mineral breaks along a flat surface or into sheets
    • Fracture – when a mineral breaks with lots of jagged edges
  • 9. Property: Density
    • Density – mass divided by volume of a mineral (in other words: how heavy it is for how much space it takes up)
    • GOLD is denser than PYRITE (“Fool’s Gold”)
      • Feels heavier
  • 10. Fracture or Cleavage?
    • Determined by the crystal structure of the mineral
      • Crystal structure – how atoms of the mineral are arranged (special order of the atoms)
      • ALL minerals have crystal structure, but there are different kinds
  • 11.  
  • 12. Property: Hardness
    • Hardness – a mineral’s resistance to being scratched
    • test what can scratch it and what it can scratch
    • Use “Moh’s Scale” to assign hardness
      • Scale of 1 to 10
        • 10 = hardest = diamond!
        • 1 = softest = talc!
  • 13.  
  • 14. Extra Special Properties
    • 1. Fluorescence
      • Fluorescent color under ultraviolet (UV) light
    • 2. Magnetic
      • Attract magnets
    • 3. Acid reaction
      • Carbon dioxide gas bubbles off when you drop acid on them
      • Carbonates!
  • 15. Fluorescence
  • 16. Magnetic
  • 17. Carbonate Acid Reaction
  • 18. The End! YAY!

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