1. Intro Objective 11/16/11 Identify minerals. Check and Hand-in Missing Assignments Write Q&A: What do you think are some ways to identify a mineral by?

3.  7 Ways to Identify Minerals  Color  Luster  Streak  Fracture  Texture  Density  Hardness

4.  Color  Describes the color that a mineral appears to be in regular light

5.  Luster  How shiny a mineral is  High  Medium  Dull

6.  Streak  The color that a mineral leaves on a streak-plate

7.  Fracture  How easily a mineral breaks cleanly

8.  Texture  How rough or smooth the mineral is  Rough  Medium  Smooth

9.  Density  How much material makes up a mineral  Mass ÷ Volume = Density

10.  Hardness  Tested by scratching the mineral with a fingernail, penny, or steel nail.  Moh’s Hardness Scale  Ranked 1 to 10  10 is the hardest

11.  Moh’s Hardness Scale identifies a minerals hardness by comparing it to another object or mineral

14. Objective 11/16/11 Outro Identify minerals. Of the 7 ways to identify minerals, which one is the least helpful? Why?