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| extrusive igneous rock, rich in iron and magnesium, that forms when lava cools on the surface of the earth. |
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| a process where sediments are glued together by minerals dissolved in a solution |
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| A coal-fired power generation plant that produces electricity and uses excess thermal energy to supply heat to surrounding community. |
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| a process that presses layers of sediment together so that the particles stick together forming a sedimentary rock. |
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| a class of igneous rock where the molten material has a volcanic origin. cooling and crystallizing at the surface of the earth, with fine grains or glassy texture. |
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| a characteristic of metamorphic rock where the crystals are arranged in layers. |
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| intrusive igneous rock, rich in oxygen and silicon, that forms when magma cools below the surface of the earth. |
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| one of three major rock groups formed when molten material solidifies above or below the surface of the earth. |
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| molten material of plutonic origin. cooling and crystallizing below the surface of the earth, usually with large grains. |
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| molten rock material that has exited the earth due to volcanism. |
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| one of three major rock groups that formed when a sedimentary, igneous or other metamorphic rock is changed by heat and/or pressure. |
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| a characteristic of metamorphic rock where crystals or grains have no layers or regular arrangement. Massive texture. |
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| a mixture of one or more minerals, organic matter, or natural glass that has formed together. |
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| the natural processes that form and change rocks from one type to another. |
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| fragments of rocks, minerals, plants, and animals that have been transported by erosion. |
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| one of the major groups of rocks. formed when particles of other rocks, plants, and animals have been lithified. |
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| a form of low-grade coal piled up near old coal mines |
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