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Rocks and Minerals Quiz
Which rock undergoes high-grade metamorphism, is foliated, and makes up much of the bedrock in the Bronx? (Give the rock name, not the rock type)
Which igneous rock forms on Earth’s surface, has gas pockets, and cannot have any potassium feldspar in its composition?
Which intrusive igneous rock(s) could be composed of approximately 60% pyroxene, 25% plagioclase feldspar, 10% olivine, and 5% amphibole? (list all possible rocks)
Which mineral property is shown in the diagram above?
If a mineral can scratch Talc, Fluorite, and Amphibole, but cannot scratch Olivine, what is its hardness?
If the mineral from (5) is white to pink in color with a nonmetallic luster, what is it most likely?
List the steps required to change an igneous rock into one of the rocks above
Mafic rocks make up much of the seafloor, while felsic rocks make up the continents. Which mineral(s) make up most (over 35%) of the seafloor?