Encyclopedia > Luster

  Article Content


Redirected from Luster

Lustre describes the appearance of the surface of a gemstone. For example, a diamond is said to have an adamantine lustre. The word lustre traces its origins back to the Latin word lux, meaning "light", and generally implies radiance, gloss, or brilliance.

Other descriptive terms used for gems include metallic; for example pyrite has a metallic lustre. Vitreous, like glass; resinous, like amber; waxy, like jade; greasy, like soapstone; pearly; and silky.

The term is also used to describe other items with a particular sheen (for example, fabric), especially silk and satin[?].

See also hornblende for a description of lustrous ores.

All Wikipedia text is available under the terms of the GNU Free Documentation License

  Search Encyclopedia

Search over one million articles, find something about almost anything!
  Featured Article
United Nations

... quite achieved. The U.S. also seek elimination of the legislated 25 percent cap on U.S. peacekeeping payments in effect since 1995, which continues to generate additional ...