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Rock formations in Cappadocia , TURKEY ,Photo by Christian Clausier   Stunning rock formation, BRYCE  CANYON   Rock, N_E Taiwan by Matthew Fang   Rock formations  ZHANGJIAJIE     Unusual rock formations on the Kuril Islands, Russia   The Giant's Causeway rock formation   Color and texture is amazing, B Bochkoltz   Wave rock formation in Arizona, USA, Marie   Natural rock formation - Fish rock   awesome rock formation, C Cuenka   Amazing rock formations Blue Canyon - Hopi Indian Reservation Land , Arizona . S Bensimra   Reed Flute Cave - Guilin , China , G Lemarlec   Beautiful rock formation   The volcanic rocks on the shore of Briar 's Island , Nova Scotia .. B Spider Skin Texture of the skin of a spider, with a hair root and pollen grains   Danxia Landform  丹霞地貌, Melinda Geologist's Rainbow - Petrified Rocks, AZ, Linda Covert   Sunset Through The Keyhole - Monument Rocks - Western Kansas   Weathered Rock Formations ‾ East Zion , Utah , D Williams   Fly Geyser Rocks, rich colors given by minerals, D Williams   Caves in Lagos , Portugal , D Williams   The Weeping Eye - Antelope Canyon , D Williams   Warraweena Sunset, Flinders Ranges , Australia , D Williams   Maijishan Caves , Tianshui , China , D Williams   Devetashka Cave, Bulgaria by Silvia   Spider Rock - Arizona , D Williams   1