Rock
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A Rock is a naturally occurring solid aggregate of minerals, mineraloids, or, in some cases, organic materials.
- Context:
- It can consist of a single mineral or a combination of several minerals.
- It can vary in color, texture, and chemical composition.
- It is used in construction, for decorative purposes, and sometimes for their mineral content.
- There are three major categories of rocks based on their formation process: Igneous Rock, Sedimentary Rock, and Metamorphic Rock.
- Example(s):
- Igneous Rocks:
- Granite - a coarse-grained rock composed mainly of quartz, feldspar, and mica.
- Basalt - a fine-grained rock composed mainly of plagioclase, pyroxene, and olivine.
- Peridotite - ...
- ...
- Sedimentary Rocks:
- Metamorphic Rocks:
- Igneous Rocks:
- Counter-Example(s):
- Synthetic Substance, such as: plastics.
- Liquid Aggregate, such as magma.
- See: Mineral, Geology, Gemstone, Fossil.