17 September (United States of America ) within release Minerals Issue goes into circulation Stamp Variscite face value 29 United States cent
Stamp Variscite in catalogues | |
---|---|
Michel: | Mi:US 2317 |
Stamp Number: | Sn:US 2702 |
Stamp is square format.
Also in the issue Minerals Issue:
Stamp Variscite 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