Extra Credit

Students are being offered an extra credit project for 50 points: 
 
Pick one of the following minerals: 
quartz 
feldspar 
calcite 
mica 
pyrite 
hematite 
galena 
graphite 
sulfur 
 
Write a paragraph giving physical and chemical properties of the element. Include a picture, state if it is an ore mineral or a rock-forming mineral, and give as many uses as possible. 
 
The project is due no later than the date of the mid-term exam. 

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