NETSCAPE NETCENTER spacer   Search  -  WebMail  -  My Netscape  -  Buddy Chat  -  Help  -  Download
Encyclopedia

carnelian

carnelian (kärnēl'yun) [key]or cornelian (kôr–, kur–) [key], variety of red chalcedony, used as a gem. It is distinguished from sard by the shade of red, carnelian being bright red and sard brownish. The red coloring is apparently caused by iron oxide.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

More on carnelian from Fact Monster:

  • cornelian - cornelian: cornelian: see carnelian.
  • chalcedony - chalcedony chalcedony [from Chalcedon], form of quartz the crystals of which are so minute that its ...
  • onyx - onyx onyx , variety of cryptocrystalline quartz, differing from agate only in that the bands of ...
  • quartz - quartz quartz, one of the commonest of all rock-forming minerals and one of the most important ...
  • month - month month, in chronology, the conventional period of a lunation, i.e., passage of the moon ...

See more Encyclopedia articles on: Mineralogy and Crystallography
© 2000–2008 Pearson Education, publishing as Fact Monster