is this a mineral n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Is this a MINERAL? PowerPoint Presentation
Download Presentation
Is this a MINERAL?

Loading in 2 Seconds...

play fullscreen
1 / 17

Is this a MINERAL? - PowerPoint PPT Presentation


  • 72 Views
  • Uploaded on

Is this a MINERAL?. SNIFC. How to Identify Minerals…. Why should we know about minerals?. Diet & Nutrition Calcium, Choline , Chromium, Copper, Fluoride, Iodine, Iron, Magnesium, Potassium, Sodium, vitamins Kidney stones, gallstones Water Cars Batteries – MP3 players, iPods, cell phones

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

PowerPoint Slideshow about 'Is this a MINERAL?' - chibale


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
why should we know about minerals
Why should we know about minerals?
  • Diet & Nutrition
    • Calcium, Choline, Chromium, Copper, Fluoride, Iodine, Iron, Magnesium, Potassium, Sodium, vitamins
    • Kidney stones, gallstones
  • Water
  • Cars
  • Batteries – MP3 players, iPods, cell phones
  • Electricity
  • Jewelry
  • Fool’s gold
identifying minerals
Identifying Minerals
  • What characteristics would you use to identify or classify different minerals? (3,800 minerals)
  • 9 classifications/properties (physical & chemical properties)
color
Color
  • Easy to observe
  • Not always a clear way to identify
streak
Streak
  • Streak: the color of its powder
  • Colors of minerals may vary but streak does not
luster
Luster
  • Luster: how much light is reflected from a mineral’s surface
density
Density
  • Density: how much mass there is in a given space
  • D = m/v or water displacement
hardness
Hardness
  • Hardness: determined by a scratch test
    • A mineral can scratch any material softer than itself
    • But can be scratched by any mineral that is harder
    • Mohs hardness scale
crystal systems
Crystal Systems
  • Crystal system: the structure of how the mineral’s atoms form
  • Ex: cubic, hexagonal, rhombic
cleavage
Cleavage
  • Cleavage: when a mineral splits along a flat surface
  • Ex: Mica
fracture
Fracture
  • Fracture: when a mineral breaks apart in an irregular way
special properties
Special Properties
  • Some minerals are identified by special physical/chemical properties.
group identification
Group Identification
  • Person #1: describe rock to partner using 3-4 properties
  • Switch
review
Review
  • Usually not a clear identifier
  • Does not break in a flat sheet
  • Calcite’s powder is always white
  • Fluorescent
  • Breaks in flat sheets
  • Shiny mineral
  • Cubic shape
  • Compares how it is scratched/scratches
  • How much mass takes up a certain volume
  • Color
  • Streak
  • Luster
  • Density
  • Hardness
  • Crystal system
  • Cleavage
  • Fracture
  • Special properties

Answers: 1. A 2. C 3. F 4. I 5. H 6. G 7. E 8. B 9. D