Stamp: Hauerite (Sierra Leone 2023)
Hauerite (Sierra Leone 2023)
20 March (Sierra Leone ) within release Minerals (2023) goes into circulation Stamp Hauerite face value 22 Sierra Leonean leone
| Stamp Hauerite in catalogues | |
|---|---|
| Yvert et Tellier: | Yt: SL 12402 |
Stamp is square format.
Also in the issue Minerals (2023):
- Mini Sheet - Minerals face value 6*22;
- Souvenir Sheet - Shortite face value 104;
- Stamp - Afwillite face value 22;
- Stamp - Hauerite face value 22;
- Stamp - Inesite face value 22;
- Stamp - Marialite face value 22;
- Stamp - Penfieldite face value 22;
- Stamp - Tantalite face value 22;
Stamp Hauerite 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
