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. Types include:
- Biotic materials
- Wood (rattan, bamboo, bark etc.)
- Natural fibers (wool, cotton, flax, hemp, jute, kapok, kenaf, moss, etc.)
- Inorganic material
- Stone (flint, granite, obsidian, sandstone, sand, gems, glass, etc.)
- Native metal (copper, bronze, iron, gold, silver, etc.)
- Composites (clay, porcelain, plasticine, etc.)
- Other natural materials.
- Soil
Famous quotes containing the words natural and/or materials:
“Doubtless, we are as slow to conceive of Paradise as of Heaven, of a perfect natural as of a perfect spiritual world. We see how past ages have loitered and erred. “Is perhaps our generation free from irrationality and error? Have we perhaps reached now the summit of human wisdom, and need no more to look out for mental or physical improvement?” Undoubtedly, we are never so visionary as to be prepared for what the next hour may bring forth.”
—Henry David Thoreau (1817–1862)
“What is most interesting and valuable in it, however, is not the materials for the history of Pontiac, or Braddock, or the Northwest, which it furnishes; not the annals of the country, but the natural facts, or perennials, which are ever without date. When out of history the truth shall be extracted, it will have shed its dates like withered leaves.”
—Henry David Thoreau (1817–1862)