Gem, Rock, and Mineral Postage Stamps Featuring
Cordierite


Mineral Name: Cordierite
Composition: Magnesium iron aluminosilicate
Nomenclature: Named after Pierre Louis Antoine Cordier, the French mining engineer who first described the mineral.
Industrial Uses: Scientific study.
Additional Notes: Cordierite exhibits the property of pleochroism, which is a change in the color of light that is transmitted through the crystal based upon the crystal's orientation.



French Southern and Antarctic Territories Scott 194
Cordierite
French Southern and Antarctic Territories
Scott 194
1.00 franc
1 Jan 1994

The stamp shows an illustration of a natural, unpolished specimen.



http://mineralstamps.rbnet.net/cordierite.htm Philatelic Mineralogy Copyright © 1997-2010 by Richard Busch