12 May (Afghanistan ) within release Minerals goes into circulation Stamp Calcite face value 40000 Afghan pul
Stamp Calcite in catalogues | |
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Michel: | Mi:AF 1866 |
Stamp is square format.
Also in the issue Minerals:
Stamp Calcite 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