LESSON 22 

 MINERALS AND CRYSTALS 



MEMORY VERSE 



As for the earth, 



The stones thereof are the place of sapphires, . 



And it hath dust of gold. 



Job 28 : 5, 6. 



God moves in a mysterious way 

 His wonders to perform. 



Cowper. 



The Purpose 



This lesson upon crystals and the one following lipon 

 metals deal with subjects as wonderful as any in God's 

 creation, if, indeed, any one phase of that creation is any 

 more marvelous than any other. The wonder of crystal- 

 lization is a lesson in itself to any one, young or old. 



The special lesson which is to be drawn from it is 

 found in the way the crystals fit together and fill the 

 space in which they are formed. For crystals, more than 

 anything else in the inanimate world, exhibit a truly re- 

 markable tendency to give each other a fair share of the 

 space they occupy. 



Suggestions for the Teacher 



For this lesson the teacher should have specimens of 

 iron pyrites in slate, of granite, and of a well-shaped quartz 

 crystal. If possible, have other crystals so the children 

 may see the different forms. Some crystals, such as rock 



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