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soocoolrockstackitup
suppercoolstudystack
suppercoollearningterm/questio | eqaulyascoolanswer/definition |
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Igneous Rock | One of the three main rock types, the others being sedimentary and metamorphic. |
Magma | Hot fluid or semi fluid material below or within the earth's crust from which lava and other igneous rock is formed by cooling. |
Crystalline | Having the structure and form of a crystal; composed of crystals. |
Instruisve | Magma forced into older rocks at depths within the Earth's crust |
Exstrusive | An Extrusive igneous rock cools very fast on the surface and is created by lava |
Coarse-grained | coarse in texture or grain |
Fine-grained | having a fine or delicate arrangement of fibers |
Porphyritic | relating to or denoting a rock texture, typically found in volcanic rocks, containing distinct crystals or crystalline particles embedded in a fine-grained groundmass. |
Glassy | resembling glass in some way, in particular |
Vesicular | a volcanic rock texture characterized by a rock being pitted with many cavities at its surface and inside. |
Felsic | elating to, or denoting a group of light-colored minerals including feldspar, feldspathoids, quartz, and muscovite. |
Mafic | denoting, or containing a group of dark-colored, mainly ferromagnesian minerals such as pyroxene and olivine. |