Intro Objective 11/16/11 Identify minerals. What do you think are some ways to identify a mineral by?

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

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

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

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

 Fracture  How easily a mineral breaks cleanly

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

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

 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

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

Objective 11/16/11 Outro Identify minerals. Why is color not very helpful in identifying minerals?