Rock Cycle - Minerals (3B)
 Lab 

PROBLEM: Are all crystals minerals?

PREDICTION:

MATERIALS: salt, epsom salt, sugar; gypsum and quartz samples, microscope

PROCEDURE: Look at the following samples under a microscope.

EXERCISE I. Draw what you see

 

DRAWING

EPSOM SALT

 

 

 

  

TABLE SALT

 

 

 

  

SUGAR

 

 

 

  

 

EXERCISE II. Draw and describe the two varieties of quartz and gypsum

QUARTZ

 

 

 

 

 

MASSIVE QUARTZ

 

 

 

GYPSUM

 

 

 

 

 

MASSIVE GYPSUM

CONCLUSION: What type of substances can be crystals?

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