minerals n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Minerals PowerPoint Presentation
Download Presentation
Minerals

Loading in 2 Seconds...

play fullscreen
1 / 23

Minerals - PowerPoint PPT Presentation


  • 133 Views
  • Uploaded on

Minerals. 4 requirements to be considered a mineral:. Naturally Occurring (not manmade). 4 requirements to be considered a mineral:. Inorganic – not from living things Arsenic minerals. 4 requirements to be considered a mineral:. Unique chemical composition (chemical formula)

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

Minerals


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
    Presentation Transcript
    1. Minerals

    2. 4 requirements to be considered a mineral: NaturallyOccurring (not manmade)

    3. 4 requirements to be considered a mineral: Inorganic – not from living things Arsenic minerals

    4. 4 requirements to be considered a mineral: Unique chemicalcomposition (chemical formula) Calcite

    5. 4 requirements to be considered a mineral: Definite structuralpattern (crystalline) Quartz

    6. Earth’s Composition • Elements found on Earth: 117 but only 8 are common • Elements found in minerals:about 12

    7. Relationship to Rocks • Are minerals rocks? Yes • Are all rocks minerals? Notalways • Why? Not all rocks fit the criteria of a mineral

    8. Mineral Formation • Precipitation: minerals settle out of solution • Crystallization: structures organization of atoms • Crystal size: depends on amount of time to grow

    9. Physical Properties: • Color – this is the LEAST RELIABLE • One mineral can come in manycolors • Many minerals can be the samecolor Quartz

    10. Physical Properties: • Streak – the color of the mineral in powdered form • May be different than its color • More reliable Pyrite

    11. Physical Properties: • Luster – how it shines or reflects light • Metallic (shiny) vs. nonmetallic (dull, glossy) Metallic Luster Nonmetallic Luster

    12. Physical Properties: • Hardness – resistance to being scratched • Moh’s hardness scale • Ranges from 1 (soft) to 10 (hard)

    13. Hardness Each number is a different mineral Ex: 1= Talc, 10=Diamond, 7= Quartz

    14. Hardness • The hardness of tools used to identify minerals can also be on the scale • Ex: Fingernail = 2.5 Penny = 3.5 Glass = 5.5 Steel nail = 6.5

    15. Physical Properties: • Cleavage – tendency of a mineral to split along planes of weakness • Up to 3 planes

    16. Physical Properties: Fracture – uneven breaks (no cleavage)

    17. Other Possibly Useful Properties: Magnetic

    18. Other Possibly Useful Properties: • Taste (not recommended) • Ex: Halite

    19. Other Possibly Useful Properties: • Acid test – some minerals bubble in hydrochloric acid • Ex: Calcite

    20. Other Possibly Useful Properties: • DoubleRefraction – can see two images through the mineral • Ex: Calcite

    21. Other Possibly Useful Properties: • Fluorescence: glow under UV light

    22. ***IMPORTANT: The physical properties of a mineral are due to the internal arrangement of its atoms!***

    23. http://sciencereviewgames.com/srg/games/gong.php?id=33 https://www.youtube.com/watch?v=cjA2-MrWAVU