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Brain Teaser

Brain Teaser. How could all of your cousins have an aunt who is not your aunt?. Minerals. Mineral - definition. Naturally occurring Inorganic Solid Specific atomic composition Definite atomic structure. Mineral Identification. 1. Hardness 2. Streak 3. Cleavage/Fracture

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Brain Teaser

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  1. Brain Teaser How could all of your cousins have an aunt who is not your aunt?

  2. Minerals

  3. Mineral - definition • Naturally occurring • Inorganic • Solid • Specific atomic composition • Definite atomic structure

  4. Mineral Identification • 1. Hardness • 2. Streak • 3. Cleavage/Fracture • 4. Luster • 5. Specific Gravity • 6. Color

  5. Hardness • Is measured by how easy it is to scratch. • Geologists order the hardness by… • Scratched by a fingernail. • Scratched by a penny. • Scratched by a nail. • Scratched by a diamond. These are not all of the tools geologists use, but it will work for our experiment.

  6. Mineral Identification • Hardness – the ability to resist scratching; ranges from 1 (softest) to 10 (hardest)

  7. Mineral Systems • If space is not restricted, a mineral will exhibit a crystal pattern with a definite number of sides and specific angles.

  8. Mineral Identification Streak • _________ – the color of the powdered form of a mineral

  9. Mineral Identification • Cleavage (flat surfaces) or Fracture (no flat surfaces) – the way a mineral __________ breaks

  10. Mineral Identification • Fracture: ___________________ • Ex. Quartz or obsidian

  11. FASHION

  12. cleavage Mica is probably the best example as it splits into thin sheets. It is said to have one perfect cleavage.

  13. Calcite and Galena cleave in three directions. They are said to have three good cleavages. cleavage

  14. Not all minerals show cleavage. Those that don’t break along cleavage surfaces are said to have fracture. Fracture

  15. Terminator Baby

  16. Luster • Refers to the way light reflects from the surface of the mineral. • There are two types of luster, • Metallic: looks like polished metal. • Nonmetallic: does not look like polished metal. • Nonmetallic can be shiny or dull.

  17. Pyrite has metallic luster

  18. Quartz has nonmetallic luster

  19. Specific Gravity of a Mineral

  20. One mineral property we will not use… COLOR

  21. A mineral can be many different colors. Below is Mica.

  22. Brain Teasers Mary’s father has 5 daughters – Nana, Nene, Nini, Nono. What is the fifth daughters name? In a one-story pink house, there was a pink person, a pink cat, a pink fish, a pink computer, a pink chair, a pink table, a pink telephone, a pink shower– everything was pink! What color was the stairs?

  23. Review

  24. RAP

  25. Minerals

  26. Parrot dance

  27. Silicates Non Silicates

  28. COMMON MINERALS IN THE EARTH • QUARTZ (Silica) SiO2 • CORUNDUM (Alumina) Al2O3 • HEMATITE Fe2O3 • CALCITE CaCO3 • DOLOMITE CaMg(CO3)2 • GYPSUM CaSO4 • FLUORITE CaF2 • PYRITE FeS2 • OLIVINE (Mg,Fe)2SiO4 • PYROXENE (Mg,Fe)SiO3 • AMPHIBOLE (Ca2Mg5)Si8O22(OH)2 • FELDSPARS Albite NaAlSi3O8 Orthoclase KAlSi3O8 Anorthite CaAl2Si2O8 • KAOLINITE Al2Si2O5(OH)4

  29. Discovery Channel : Salt

  30. Common minerals and their uses

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