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magnetite

(Encyclopedia)magnetite măgˈnətīt [key], lustrous black, magnetic mineral, Fe3O4. It occurs in crystals of the cubic system, in masses, and as a loose sand. It is one of the important ores of iron (magnetic iro...

Rosenwald, Julius

(Encyclopedia)Rosenwald, Julius rōˈzənwôld [key], 1862–1932, American merchant and philanthropist, b. Springfield, Ill. He was president (1910–25), and later chairman of the board, of the mail-order house o...

ramontchi

(Encyclopedia)ramontchi, small tree or shrub (Flacourtia indica) belonging to the family Flacourtiaceae. It is cultivated in S Asia and in other tropical regions for its large edible berries. Dark purple to black i...

Rannoch, Loch

(Encyclopedia)Rannoch, Loch lŏkh rănˈəkh [key], lake, 91⁄2 mi (15.3 km) long and 1 mi (1.6 km) wide, Perth and Kinross, central Scotland, in the Grampians. It is fed by the Ericht River and drained by the Tum...

ilmenite

(Encyclopedia)ilmenite ĭlˈmĕnīt [key], black mineral, iron titanium oxide, FeTiO3, crystallizing in the hexagonal system. It is sometimes found as tabular hexagonal crystals but occurs more commonly as small gr...

Ribe

(Encyclopedia)Ribe rēˈbə [key], city (1992 pop. 7,892), capital of Ribe co., SW Denmark, on the Ribe River. One of the oldest cities of Denmark, Ribe was mentioned in the 9th cent. and became an episcopal see in...

Giresun

(Encyclopedia)Giresun gērĕso͞onˈ [key], city, capital of Giresun prov., NE Turkey, a port on the Black Sea. ...

Gravely, Samuel Lee, Jr.

(Encyclopedia)Gravely, Samuel Lee, Jr., 1922–2004, U.S. naval officer, the first African American to hold the rank of admiral, b. Richmond, Va. Joining the Naval Reserves in 1942, he became (1944) the first Afric...

Balkans

(Encyclopedia)Balkans, Bulg. Stara Planina stäˈrä pläˌnēnäˈ [key], major mountain range of the Balkan Peninsula and Bulgaria, extending c.350 mi (560 km) from E Serbia through central Bulgaria to the Black ...

patina

(Encyclopedia)patina pătˈənə [key], coating of carbonate of copper on articles of copper or bronze, formed after long exposure to a moist atmosphere or burial in the earth. Although commonly green, patina varie...