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The following is a list of rock types recognized by geologists. There is no agreed number of specific types of rock. There is no agreed number of specific types of rock. Any unique combination of chemical composition, mineralogy, grain size, texture, or other distinguishing characteristics can describe a rock type.
Monolith with bull, fox, and crane in low relief at Göbekli Tepe. The density of most stone is between 2 and 3 tons per cubic meter. Basalt weighs about 2.8 to 3.0 tons per cubic meter; granite averages about 2.75 metric tons per cubic meter; limestone, 2.7 metric tons per cubic meter; sandstone or marble, 2.5 tons per cubic meter.
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As of October 2024, the hardest single-pitch redpoint was at the grade of 9c (5.15d) for men and 9b (5.15b) for women. The hardest onsight was at the grade of 9a (5.14d) for men and 8c (5.14b) for women. The hardest boulder solved was at the boulder grade of V17 (9A) for men and V15/V16 (8C/8C+) for women.
La Dura Dura became the world's first repeated and thus confirmed 9b+ (5.15c) climb (Ondra's Change was recorded as the first 9b+, and that route was not repeated until 2020 by Italian Stefano Ghisolfi who confirmed the grade); [14] and for years it was listed as the "world's hardest climb" (Ondra had said it was harder than Change), [3] until ...
Silence (also Project Hard), is a 45-metre (148 ft) severely overhanging sport climbing route in the granite Hanshelleren Cave in Flatanger Municipality, Norway.When Czech climber Adam Ondra made the first free ascent on 3 September 2017, it became the first rock climb in the world to have a proposed climbing grade of 9c (5.15d), and it is an important route in rock climbing history.
Rocks formations and the Dedo de Deus (God's Finger) peak in the background, Serra dos Órgãos National Park, Rio de Janeiro state, Brazil Raouché or Pigeons' Rock in Beirut, Lebanon Druid Arch, Canyonlands National Park, Utah, US View of Meteora, Greece Rock formations in Ongamira Valley, Sierras de Córdoba, Argentina Belogradchik Rocks, Balkan Mountains, Bulgaria "Jaws", an erosional fin ...
Anorthosite Moon rock collected by Apollo 16 astronauts. It is approximately 3.9 billion years old and is the largest Moon rock brought from the Moon. Black Rock: Tooele County, Utah, United States: Large rock on the shoreline of Great Salt Lake. Black Stone: Kaaba, Great Mosque, Mecca, Saudi Arabia: A highly respected Islamic stone set in the ...