Image indisponibleiPhoto : VikSl Exhibit from my own collection ( V.Slyotov, http://mindraw.web.ru/ )CC BY 3.0 · Wikimedia CommonsChalcopyrite
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Image indisponibleiPhoto : Deutsches Edelsteinmuseum (Jürgen Cullmann)CC BY-SA 3.0 de · Wikimedia CommonsGéode d'améthyste d'Uruguay
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Image indisponibleiPhoto : Hannes Grobe 07:59, 27 October 2007 (UTC)CC BY-SA 2.5 · Wikimedia CommonsPierre ponce
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Image indisponibleiPhoto : http://resourcescommittee.house.gov/subcommittees/emr/usgsweb/photogallery/ English Wikipedia, original upload 3 August 2004 by Chris 73 toPublic domain · Wikimedia CommonsSiltite
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