| Mineral Name: | Carnelian |
| Composition: | Silicon oxide |
| Nomenclature: | Named after the Latin word carneus which means "flesh" because of its color. |
| Industrial Uses: | Gemstones. |
| Additional Notes: | Carnelian is a variety of chalcedony that is impregnated with iron compounds to produce a red or reddish-brown color. Chalcedony is a cryptocrystalline (crystals of sub-microscopic size) variety of quartz with a somewhat waxy appearance. |
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Carnelian (Quartz) New Zealand Scott 759 5 cents 1 Dec 1982 |
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| The stamp shows a cross-section of a geode. | |
| http://stampmin.home.att.net/carnelian.htm | Philatelic Mineralogy | Copyright © 1997-2008 by Richard Busch |