(Encyclopedia) galenagalenagəlēˈnə [key] or lead glance, lustrous, blue-gray mineral crystallizing usually in cubes, sometimes in octahedrons. It is the most important ore and the principal source of…
(Encyclopedia) anglesiteanglesiteăngˈgləsīt [key], pale green, blue, yellow-to-white, or colorless mineral, a sulfate of lead, PbSO4, that is formed by oxidation of galena, crystallizing in the…
(Encyclopedia) Gros VentreGros Ventregrō văNˈtrə [key] [Fr.,=big belly], name used by the French for two quite distinct Native North American groups. One was the Atsina, a detached band of the…
Going Their Separate WaysAnatomy and PhysiologyCardiovascular and Lymphatic CirculationVessels To and FroHere, There, EverywhereGoing Their Separate WaysOh, the Pressure!Drainage System The most…
(Encyclopedia) cerussitecerussitesērˈəsīt [key], colorless to white or gray mineral, sometimes yellowish or greenish, transparent to opaque, very brittle, crystallizing in the orthorhombic system and…
(Encyclopedia) onageronagerŏnˈəjər [key] or Persian wild ass, wild ass of central Asia, Equus hemonius onager. Formerly classified as a separate species, it is one of the several subspecies of Asian…
(Encyclopedia) scale, in zoology, an outgrowth, either bony or horny, of the skin of an animal. The major component of the scales of fishes is bone, and they are formed directly in the skin membrane…
(Encyclopedia) KabweKabwekäbˈwā [key], formerly Broken Hill, city (1990 pop. 166,519), central Zambia. During the 20th cent. it was an important lead and zinc mining and smelting center. As a result…
(Encyclopedia) pigment, substance that imparts color to other materials. In paint, the pigment is a powdered substance which, when mixed in the liquid vehicle, imparts color to a painted surface. The…
