voids in rock
81Omarolluk — Omar An Omar with a hemispherical void in its side. General Category Native Minerals …
82A Sun by Rising Set — Studioalbum von The Void’s Last Stand Veröffentlichung 2009 Label Long Hair Music Format …
83Diamond — This article is about the mineral. For the gemstone, see Diamond (gemstone). For other uses, including the shape ◊, see Diamond (disambiguation) …
841971 — This article is about the year 1971. Millennium: 2nd millennium Centuries: 19th century – 20th century – 21st century Decades: 1940s  1950s  1960s  – 1970s –  1980s   …
85Coral reef — Marine habitats Biodiversity of a coral reef Lit …
86Vug — Vugs are small to medium sized cavities inside rock that may be formed through a variety of processes. Most commonly cracks and fissures opened by tectonic activity (folding and faulting) are partially filled by quartz, calcite, and other… …
87Splash cymbal — The drum kit …
88Comstock Lode — Bonanza ore, Consolidated California and Virginia Mine, Comstock Lode The Comstock Lode was the first major U.S. discovery of silver ore, located under what is now Virginia City, Nevada, on the eastern slope of Mount Davidson, a peak in the… …
89Geology of the Canyonlands area — The exposed geology of the Canyonlands area is complex and diverse; 12 formations are exposed in Canyonlands National Park that range in age from Pennsylvanian to Cretaceous. The oldest and perhaps most interesting was created from evaporites… …
90Directional boring — A small directional boring unit in action Directional boring, commonly called horizontal directional drilling or HDD, is a steerable trenchless method of installing underground pipes, conduits and cables in a shallow arc along a prescribed bore… …
