Gem, Rock, and Mineral Postage Stamps Featuring
Andradite


Mineral Name: Andradite
Composition: Calcium iron silicate
Nomenclature: Named after Brazilian mineralogist J. B. de Andrada e Silva.
Industrial Uses: Gemstones; abrasive (garnet paper).
Additional Notes: A member of the Garnet group of minerals. The green variety of andradite is demantoid. The black variety of andradite is melanite. The yellow variety of andradite is topazolite.



Azerbaijan Scott 421
Andradite (Garnet)
Azerbaijan
Scott 421
15 manat
15 Jun 1994

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



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