Azerbaijan
Scott 421
15 manat
15 Jun 1994
| 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. |
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Andradite (Garnet) Azerbaijan Scott 421 15 manat 15 Jun 1994 |
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| The stamp shows an illustration of a natural, unpolished mineral specimen. | |
| http://stampmin.home.att.net/andradite.htm | Philatelic Mineralogy | Copyright © 1997-2008 by Richard Busch |