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10 Cards in this Set
- Front
- Back
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Textures
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Intrusive-forms inside earths surface.
Extrusive-Forms at or outside earths surface. |
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Intrusive Types
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Phaneritic
Porphyritic |
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Phaneritic
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smaller crystals (Oatmeal Cookie) crystals look like little oats.
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Porphyritic
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Large Crystals (Chocolate Chip Cookie) crystals look like Chocolate Chunks.
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Extrusive Types
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Aphanitic
Glassy Vesicular |
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Aphanitic
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small grains (Crystals are NOT visible)
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Glassy
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Obsidian- Only Agueos Solution form.
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Vesicular
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lots of holes like: (Cheese)
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Intrusive Rocks
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Granite
Basalt Gabbro |
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Extrusive Rocks
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Obsidian
Rhyolite Pumice Vesicular Basalt |
