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GEOLOGY ON POST STAMPS

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Minerały          Minerals

Gambia / The Gambia

 Od lewej, górny rząd: stilbit, kwarc dymny, lazuryt, dolny rząd: ametyst, czarny opal i rubin, w tle agat; bloczek wydany w roku 2004.
  Upper row from left to right: stilbite, smoky quartz, lazurite, lower row: amethyst, black opal, ruby, picture of an agate in the background, the stamp block issued in 2004.

Coll. Andrzej Kozlowski


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