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sodium nitrate

(Encyclopedia)sodium nitrate, chemical compound, NaNO3, a colorless, odorless crystalline compound that closely resembles potassium nitrate (saltpeter or niter) in appearance and chemical properties. It is soluble ...

Capitol Reef National Park

(Encyclopedia)Capitol Reef National Park: 241,904 acres (97,971 hectares), S Utah. The park features a dome-shaped white rock, said to resemble the U.S. Capitol, and a maze of deep canyons, arches, and monoliths cu...

mining

(Encyclopedia)mining, extraction of solid mineral resources from the earth. These resources include ores, which contain commercially valuable amounts of metals, such as iron and aluminum; precious stones, such as d...

Liston, Sonny

(Encyclopedia)Liston, Sonny (Charles Liston), 1932–71, American boxer, b. Little Rock, Ark. While serving a sentence for robbery at the Missouri State Penitentiary, Liston became interested in boxing. In 1953 he ...

Ashokan Reservoir

(Encyclopedia)Ashokan Reservoir əshōˈkən [key], 13 sq mi (34 sq km), SE N.Y., completed 1912. It is supplied by the Esopus and Schoharie watersheds and provides part of New York City's water supply. Water is ca...

Natural Bridges National Monument

(Encyclopedia)Natural Bridges National Monument, 7,636 acres (3,093 hectares), SE Utah; est. 1908. Located in an area of colored cliffs and box canyons, the monument contains three huge natural sandstone bridges: O...

coney

(Encyclopedia)coney or cony both: kōˈnē [key], name used for the rabbit (Oryctolagus) and for its fur; more often, for the pika, a small rodent found at high altitudes in both hemispheres; and for the rock hyrax...

chromite

(Encyclopedia)chromite krōˈmīt [key], dark brown to black mineral. It is an iron-chromium oxide, FeCr2O4, with traces of magnesium and aluminum. Its crystals are octahedral, but rare; it usually occurs as irregu...

Great Sandy Desert

(Encyclopedia)Great Sandy Desert, Australia's second-largest desert, c.110,000 sq mi (284,900 sq km), Western Australia and Northern Territory. Lying between the Tanami Desert (NE) and the Gibson Desert (S), it is ...

amphibole

(Encyclopedia)amphibole ămˈfəbōlˌ [key], any of a group of widely distributed rock-forming minerals, magnesium-iron silicates, often with traces of calcium, aluminum, sodium, titanium, and other elements. The ...