Columbia Encyclopedia

Search results

500 results found

soapstone

(Encyclopedia)soapstone or steatite stēˈətīt [key], metamorphic rock of which the characteristic and usually chief mineral is talc, but which also contains varying parts of chlorite, mica, tremolite, quartz, ma...

trillium

(Encyclopedia)trillium or wake-robin trĭlˈēəm [key], any plant of the large genus Trillium, attractive spring wildflowers of the family Liliaceae (lily family), native to North America and E Asia. The leaves, p...

Flaming Gorge Dam

(Encyclopedia)Flaming Gorge Dam, in a deep canyon of the Green River, NE Utah; built 1958–63 by the U.S. Bureau of Reclamation as a major unit in the Colorado River storage project. The dam regulates the flow of ...

fluorite

(Encyclopedia)fluorite flo͞oˈərspär [key], mineral appearing in various colors, e.g., green, yellow-brown, rose, and red. Chemically, it is calcium fluoride, CaF2. Its crystals, commonly cubic, are transparent ...

fuller's earth

(Encyclopedia)fuller's earth, mineral substance characterized by the property of absorbing basic colors and removing them from oils. It is composed mainly of alumina, silica, iron oxides, lime, magnesia, and water,...

Goyen, Jan Josephszoon van

(Encyclopedia)Goyen, Jan Josephszoon van yän yōˈzəfsōn vän gōˈyən [key], 1596–1656, Dutch landscape painter. He studied at Leiden and Haarlem. In 1631 he settled at The Hague. His typically Dutch landsca...

turquoise

(Encyclopedia)turquoise, hydrous phosphate of aluminum and copper, Al2(OH)3PO4·H2O+Cu, used as a gem. It occurs rarely in crystal form, but is usually cryptocrystalline. Turquoise is opaque and has a waxy luster; ...

Brown, Helen Gurley

(Encyclopedia)Brown, Helen Gurley, 1922–2012, American writer and editor, b. Green Forest, Ark. A child of poverty, she became a successful advertising copywriter and wrote the best-selling Sex and the Single Gir...

Bécquer, Gustavo Adolfo

(Encyclopedia)Bécquer, Gustavo Adolfo go͞ostäˈvō ädôlˈfō bāˈkĕr [key], 1836–70, Spanish poet and writer of romantic tales. Bécquer's work is considered to be among the best 19th-century lyric poetry....

Bennington

(Encyclopedia)Bennington, town (2020 pop. 15,333), seat of Bennington co., SW Vt.; chartered 1749, settled 1761. It includes the villages of North Bennington and Old ...
 

Browse by Subject