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GEOLOGY ON POST STAMPS |
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GEOLOGY ON POST STAMPS |
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Gwinea Bissau / Guinea Bissau
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Azuryt częściowo zastąpiony malachitem (na znaczku), w tle turmalin
elbait z albitem, bloczek wydany w roku 2004.
Azurite partly
altered to malachite (stamp), elbaite tormaline with albite in the
background, the sheet issued in 2004.
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Wulfenit (lewy górny), pirotyn? (środkowy górny), piromorfit (prawy
górny), piryt z kalcytem? (lewy dolny), fluoryt (środkowy dolny),
galena i kwarc (prawy dolny); arkusz wydany w roku 2004.
Wulfenite (upper
left), pyrrhotite? (upper central), pyromorphite (upper right),
pyrite with calcite? (lower left), fluorite (lower central),
galena and quartz (lower right); the sheet issued in 2004.
Coll. A. Kozłowski
