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Grotte de Choranche
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Nicolas Tissier
Nicolas Tissier
Fistuleuses visibles à l’intérieur de la grotte de Choranche, située dans la gorge de la Bourne, dans le Vercors. Il s’agit de stalactites très fines (4 mm de diamètre), tubulaires, pouvant atteindre 3 m de long et constituées de cristaux de calcaire (calcite)
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