Igneous rocks that contain mostly quartz and feldspar with small amounts of biotite would be described as having a(n)________ composition.
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Q98: Magma is currently forming beneath the Rockies.
Q99: Basalt is the fine-grained equivalent of gabbro.
Q100: Sedimentary rocks make up approximately 60 percent
Q101: In general,recrystallization tends to produce larger crystals.
Q102: An igneous rock that cools deep inside
Q104: When a metamorphic rock exhibits a layered
Q105: Probably the single most characteristic feature of
Q106: Most of the energy and mineral resources
Q107: Why do most sediments end up being
Q108: If all of the olivine crystallized in
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