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GEOLOGY ON POST STAMPS |
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GEOLOGY ON POST STAMPS |
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Cypr / Cyprus
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Jaspis zielony 
Green jasper |
Piryt
Pyrite |
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Gips
Gypsum |
Chalcedon
Chalcedony |
Znaczki wydane w roku
1998. The stamps issued in
1998.
Images courtesy Andrzej Zydorczak
