What mineral compositio - Study guides, Class notes & Summaries
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PHSC 211 Chapter 2 Quiz (Fall 2020)– Liberty University (A grade) | Elements of Earth Science
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PHSC 211 Chapter 2 Quiz (Fall 2020)– Liberty University (A grade) 
 
1. What mineral composition is most characteristic of felsic rocks? 
a. olivine, pyroxene, and calcium-rich plagioclase 
b. orthoclase, quartz, and biotite 
c. calcium-rich plagioclase and hornblende with some olivine 
d. particles of volcanic ash welded together 
 
2. What mineral composition is most characteristic of mafic rocks? 
a. olivine, pyroxene, and calcium-rich plagioclase 
b. orthoclase, quartz, and biotite 
c. sod...
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