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16 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Granite |
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CC: Felsic DM: Quartz, Potassium, Feldspar RM: Micas, Amphibole C: 0-25% |
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Rhyolite |
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CC: Felsic DM: Quartz, Potassium, Feldspar RM: Micas, Amphibole C: 0-25% |
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Vesicular Pumice |
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Pyroclastic Very vesicular |
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Diorite |
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Andesite |
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Porphyritic Andesite |
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Aphanitic rocks that contain scattered coarse or medium phenocrysts surrounded by groundmass composed of fine crystals &/or glass. This texture is sometimes formed by a two stage cooling system. |
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Gabbro |
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Basalt |
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Vesiclular Basalt |
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Bubbles which result in holes in the completely solidified rock. |
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Amygdaloidal Basalt |
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Vesicles that have been filled with a secondary mineral long after the flow cooled ( commonly quartz or calcite ) |
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Obsidian |
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Pyroclastic Volcanic glass |
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Peridotite |
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Komattite |
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Phaneritic Igneous Rocks |
Igneous rocks in which all the crystals are large enough to be distinguished, Medium to coarse crystals. Also called intrusive or plutonic because they form below the surface. |
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Pyroclastic |
Rocks that are formed by the ejection of molten rocks into the atmosphere |
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Aphanitic Igneous Rocks |
Rocks that form by the rapid cooling lava, at or near the surface. They have a fine crystal size. Also called extrusive or volcanic. |
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