23 October (Armenia ) within release Minerals.Agate goes into circulation Stamp Minerals.Pyrite face value 170 Armenian dram
Stamp Minerals.Pyrite in catalogues | |
---|---|
Michel: | Mi:AM 347 |
Yvert et Tellier: | Yt:AM 308 |
Stamp is horizontal format.
Miniature Sheet composition: 10 (2 x 5) stampsAlso in the issue Minerals.Agate:
Stamp Minerals.Pyrite 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