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Silk

Silk is a natural protein fibre, some forms of which can be woven into textiles.

The best-known type of silk is obtained from the cocoon of silkworm larvae reared in captivity (sericulture).

The shimmering appearance for which silk is prized comes from the fibres' triangular prism-like structure which allows silk cloth to refract incoming light at different angles.

Note:   The above text is excerpted from the Wikipedia article "Silk", which has been released under the GNU Free Documentation License.
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August 4, 2015

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