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Collection of pretty stamps featuring minerals.

Collection of pretty stamps featuring minerals.

Pyrargirite , Dark red silver ore or Ruby silver ,  is a sulfosalt mineral consisting of silver sulfantimonide.  Postage stamp from Togo, 1999

Pyrargirite , Dark red silver ore or Ruby silver , is a sulfosalt mineral consisting of silver sulfantimonide. Postage stamp from Togo, 1999

Sello: Azurit (Namibia) (Oranjemund Alluvial Diamond Mine) Mi:NA 686x,Sn:NA 677,Yt:NA 643

Sello: Azurit (Namibia) (Oranjemund Alluvial Diamond Mine) Mi:NA 686x,Sn:NA 677,Yt:NA 643

timbre_tanzanie_1986_saphir.jpg (1000×700)

timbre_tanzanie_1986_saphir.jpg (1000×700)

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