1 / 14

Bell work 9/18/2017 GET YOUR COMP BOOK!

Bell work 9/18/2017 GET YOUR COMP BOOK!. Mineral Breakage Observe the picture below then decide if it shows fracture or cleavage. Cleavage. Let ’ s Review…. Fracture or Cleavage?. Let ’ s Review…. YES. Does it have luster?. Identifying Minerals. Density Streak Hardness. Today’s Goals….

lsegura
Download Presentation

Bell work 9/18/2017 GET YOUR COMP BOOK!

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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Bell work 9/18/2017 GET YOUR COMP BOOK! Mineral Breakage Observe the picture below then decide if it shows fracture or cleavage. Cleavage

  2. Let’s Review… Fracture or Cleavage?

  3. Let’s Review… YES Does it have luster?

  4. Identifying Minerals Density Streak Hardness

  5. Today’s Goals… • Describe streak. • Recognize the hardness of a mineral. • Explain how streak and hardness can be used to identify an unknown mineral.

  6. DENSITY… • Density is how closely packed together atoms are in a given volume of space. • Density is the amount of matter you have to fill in a specific space. • When there is more matter in a given space, it is more dense. Density = mass/volume

  7. Observe the DENSITY column below: Rubbing Alcohol Vegetable Oil Toy Block Water Maple Syrup Marble

  8. What is streak? On your foldable… Streak is the color of the powder of a mineral.

  9. What is hardness? On your foldable… Hardness is a measure of the ability of a mineral to resist scratching.

  10. Hardness Test Lab: • Try to scratch all four minerals with your fingernail. • Try to scratch a penny using all four minerals. • Try to scratch all four minerals with a nail.

  11. Which picture below shows streak? B A C D

  12. Which is harder: Calcite or Topaz?

More Related