Diaporama ‘Trovants the growing stones of Romania’, de l'auteur Stelaspinoie.

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The “Trovants” are stones or sandstone concretions that secrete cement and appear to grow by themselves. They consist of a stone core with an outer shell of sand believed to be the result of cementation that occurred millions of years ago. After heavy rain small forms appear on the rocks leading them to be dubbed “growing stones” by locals. Examples of trovants can be seen at the Trovant Museum (Muzeul Trovantilor) in Costesti, in the Valcea region of Romania. The Trovants Museum Natural Reserve, located at 8 km from Horezu, in the village Costesti, declared UNESCO monument, spreads on valleys and hills strange hoodoos, also named „the stones that are growing”, having sizes starting with several millimeters to 6-8 meters. The Trovants Museum Natural Reserve is situated in Costesti village (Valcea County), in south of village, near National Road 67. It has 11000 sqm and was created as a geological reserve. In various structural units from Romania there are sand or gress levels with trovants, but the ones in Costesti are impressive because of diversity of their shapes and their dimensions (up to 5 m).