15 June (Azerbaijan ) within release Local Minerals goes into circulation Stamp Amethyst face value 20 Azerbaijani manat
Stamp Amethyst in catalogues | |
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Michel: | Mi:AZ 139 |
Stamp is vertical format.
AmethystAlso in the issue Local Minerals:
Stamp Amethyst it reflects the thematic directions:
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid substance with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form