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6 Cards in this Set
- Front
- Back
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obsidian |
rock displays a glassy texture |
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pumice |
light in color with conspicuous, small, flattened vesicles indicating a felsic or intermediate composition |
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basalt |
The rock is dark in color, indicating a mafic composition |
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felsite |
Lighter in color, indicating a felsic or intermediate composition. |
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gabbro |
black with abundant Ca-plagioclase and little olivine, it is mafic. |
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granite |
contains k-feldspar or quartz |
