Rock is a large mass, or hard material such as stone, that can be comprised of different things (sediment, diatoms, granite, crystals, etc.).  Rock has obtained its hardness due to pressure and/or time.  A rock is a smaller part of a larger mass.  It is also a larger mass of material comprising parts of a mountain.




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CARM Office number: 208-466-1301
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Mailing Address: CARM, PO BOX 1353, Nampa ID 83653