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cristal de Quartz de 13 cm, avec des inclusions bleu-vert (détail photo 4) . Le quartz est accompagné de cristaux de sidérite brune (photo 3).
Unusual slightly prismatic brown crystals of siderite to 1.0 cm in length on blue-green crystallized quartz (unknown inclusions). Minor calcite is present.
13 x 7 x 6 cm.
Mine de Panasqueira, Portugal
Coleção : Minéraux de Panasqueira