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GEOLOGY ON POST STAMPS |
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GEOLOGY ON POST STAMPS |
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Niemiecka Republika Demokratyczna / German Democratic Republic
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Gips, Eisleben Gypsum from
Eisleben |
Zinnwaldyt i morion z Zinnwald, G. Kruszcowe Zinnwaldite
and morion, Zinnwald, Erzgebirge |
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Malachit z Ullersreuth, Vogtland Malachite
from Ullersreuth in Vogtland |
Ametyst z Wiesenbad, G. Kruszcowe Amethyst from
Wiesenbad in Erzgebirge |
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Niebieski halit z Merkers w Rhön Blue halite
from Merkers in Rhön |
Proustyt z Gór Kruszcowych Proustite
from Erzgebirge (Ore Mountains) |
Coll. Andrzej Kozlowski
