| Mineral Name: | Enargite |
| Composition: | Beryllium aluminum silicate hydroxide |
| Nomenclature: | Named from the Greek words eu meaning "well" and klasis meaning "breaking," a reference to the property of euclase to cleave (break along flat planes) easily. |
| Industrial Uses: | Gemstones. |
| Additional Notes: | Also referred to as euclasite. |
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Euclase Comoro Islands Scott 930d 375 francs 1998 |
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| The stamp shows a natural, unpolished specimen. | |
| http://mineralstamps.rbnet.net/euclase.htm | Philatelic Mineralogy | Copyright © 1997-2010 by Richard Busch |