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Rock and Minerals
Term | Definition |
---|---|
Compaction | When rock particles or sediments are pressed together or packed down by gravity and the pressure of overlying rock layers |
igneous rock | rock formed when lava or magma cools, from crystals, and solid fies |
metamorphic rock | rock formed deep underground due to heat and pressure |
mineral | a naturally formed, inorganic solid that has a specific chemical formula and repeating three dimensional structure |
mineral composition | the unique combination of solid elements and compounds that make up a mineral |
rock cycle | the cycle through which earths rocks changes from one type to another over time due to various earth processes ; creates changes in mineral composition and physical structures |