Aim: What information will be covered on our minerals exam? Objective: Students will know the information required of them for their exam. Do now: Knowing more then one mineral property is important when identifying it because…

Information on test What are minerals Properties of minerals: luster, streak, hardness, magnetism, cleavage or fracture, and color How to find streak How to find hardness How to read the Mohs hardness scale

Name four properties of minerals

How do you find the streak of a mineral? 1) Scratch it with a steel file 2) Scratch it with the streak plate 3) Rub it against a streak plate 4) hit it with a hammer

Can color alone be used to identify a mineral? Explain your answer.

Describe how you find the streak of a mineral.

Describe how you find the hardness of a mineral.

What is the difference between metallic and nonmetallic luster? 1) metallic is metal and nonmetallic is powder 2) metallic shines like metal and nonmetallic does not 3) metallic means it is magnetic and nonmetallic is not 4) metallic is green and nonmetallic is gray

What is the scale called that hardness is measured on? 1) Einstein’s scale 2) Herman’s scale 3) Joe’s scale 4) Moh’s scale

Name 5 properties that can be used to help identify a mineral.

Name a mineral that can be scratched by your fingernail.

What is the hardest mineral on the scale?

What is the hardness range for a mineral that is scratched by Topaz but not by Feldspar?

If the hardness range of a mineral is 5-7, what mineral could it be?

If the hardness range is 6-8, what possible common object may this be?

Why will a diamond not leave a streak on the streak plate?

If a mineral has cleavage how should the broken pieces of the mineral look? 1) If a mineral has cleavage than the pieces will be flat and similar in shape to the original. 2) If a mineral has cleavage than the piece will have rough edges 3) If a mineral has cleavage it will not look like the original mineral 4) If a mineral has cleavage it will break into larger pieces

What is the difference between cleavage and fracture?

Homework: Study for exam 5 extra credit points for creation of study guide or flashcards

Review Word Models Each group is going to create a Frayer Model of an assigned vocabulary word below: Group 1- hardness Group 2- streak Group 3- luster Group 4- fracture Group 5- cleavage Group 6- mohs scale Group 7- mineral Group 8- magnetism Group 9- specific gravity