(Encyclopedia) cryolite or kryolitecryoliteboth: krīˈəlītˌ [key] [Gr.,=frost stone], mineral usually pure white or colorless but sometimes tinted in shades of pink, brown, or even black and having a…
(Encyclopedia) Newsom, Gavin Christopher, 1967– American businessman and politician, b. San Francisco. He was a cofounder (1991) of the PlumpJack Group, whose businesses grew from a wine store to…
(Encyclopedia) cassiteritecassiteritekəsĭtˈərīt [key], heavy, brown-to-black mineral, tin oxide, SnO2, crystallizing in the tetragonal system. It is found as short prismatic crystals and as irregular…
(Encyclopedia) cattail or reed mace, any plant of the genus Typha, perennial herbs found in almost all open marshes. The cattail (also called club rush) has long narrow leaves, sometimes used for…
(Encyclopedia) tanzanitetanzanitetănzănˈīt [key], beautiful gemstone discovered in 1967 in the Umba Valley near the Usambara Mts. in Tanzania, a precious variety of the mineral zoisite, a calcium…
(Encyclopedia) birthmark, pigmented maldevelopment of the skin that varies in size, either present at birth or developing later. Birthmarks may appear as moles (melanocytic nevi) that vary in color…
(Encyclopedia) bushmaster, large venomous snake, Lachesis muta, of Central America and N South America. It is a member of the pit viper family, which also includes the rattlesnake. The largest New…
(Encyclopedia) Blenheim Park, estate, Oxfordshire, central England, near Woodstock. The stately Blenheim Palace was designed by Sir John Vanbrugh and stands on spacious grounds that included…
