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natural material
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A natural material is any product or physical matter that comes from plants, animals, or the ground. Minerals and the metals that can be extracted from them (without further modification) are also considered to belong into this category. Natural materials are also often used in textiles. Types include:
* Biotic materials
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* Wood (rattan, bamboo, bark etc.)
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* Natural fiber(silk),(wool, cotton, flax, hemp, jute, kapok, kenaf, moss, etc.)
* Inorganic material
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* Stone (flint, granite, obsidian, sandstone, sand, gems, glass, etc.)
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* Native metal (copper, bronze, iron, gold, silver, etc.)
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* Composites (clay, porcelain, plasticine, etc.)
* Other natural materials.
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* Soil
== See also ==
* Earth structure
* Material science
* Natural resources
* Synthetic material
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* Metamaterial
Natural Materials come from plants, animals and rock.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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