Question 1
If magma or lava cools quickly, the resulting igneous rock will have ________.
◦ more silicate minerals
◦ very small crystals
◦ more variations in mineral types
◦ very large crystals
Question 2
Which of the following is
not a dark silicate mineral?
◦ biotite
◦ pyroxene
◦ amphibole
◦ quartz