Souvenir Sheet: Rocks and Minerals (Croatia 2022)
Rocks and Minerals (Croatia 2022)
20 October (Croatia ) within release Rocks and Minerals (2022) goes into circulation Souvenir Sheet Rocks and Minerals face value 2*5 Croatian kuna
| Souvenir Sheet Rocks and Minerals in catalogues | |
|---|---|
| Colnect codes: | Col: HR 2022.10.20 |
Souvenir Sheet is horizontal format.
Also in the issue Rocks and Minerals (2022):
- Stamp - Loess face value 5;
- Stamp - Pyrites face value 5;
- Souvenir Sheet - Rocks and Minerals face value 2*5;
Souvenir Sheet Rocks and Minerals 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
In geology, rock (or stone) is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition, and the way in which it is formed. Rocks form the Earth's outer solid layer, the crust, and most of its interior, except for the liquid outer core and pockets of magma in the asthenosphere. The study of rocks involves multiple subdisciplines of geology, including petrology and mineralogy. It may be limited to rocks found on Earth, or it may include planetary geology that studies the rocks of other celestial objects.
