26 August (South Africa ) within release South African Geology goes into circulation Stamp Barbertone Greenstone face value Int. No Face Value
Stamp Barbertone Greenstone in catalogues | |
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Michel: | Mi: ZA 2419 |
Stamp is square format.
Value at the time of the issue: 8,40 RandsAlso in the issue South African Geology:
Stamp Barbertone Greenstone it reflects the thematic directions:
Geology (from Ancient Greek γῆ (gê) 'earth', and λoγία (-logía) 'study of, discourse') is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology. It is integrated with Earth system science and planetary science.