23 August (Botswana ) within release Minerals surcharged goes into circulation Stamp Chrysotile face value 25 Botswana thebe
Stamp Chrysotile in catalogues | |
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Stamp Number: | Sn:BW 164 |
Stamp is square format.
Also in the issue Minerals surcharged:
Data entry completed
53%
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Stamp Chrysotile in digits | |
Country: | Botswana |
Date: | 1976-08-23 |
Print: | Photogravure |
Perforation: | 14 x 13 |
Emission: | Commemorative |
Format: | Stamp |
Face Value: | 25 Botswana thebe |
Stamp Chrysotile 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