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pentlandite

(Encyclopedia)pentlandite pĕntˈləndīt [key], yellowish-bronze, opaque mineral, a sulfide of iron and nickel, (Fe,Ni)9S8. It is found in masses nearly always associated with the iron sulfide pyrrhotite. The larg...

Tuapse

(Encyclopedia)Tuapse to͞oəpsyĕˈ [key], city (1989 pop. 63,100), Krasnodar Territory, SE European Russia, on the Black Sea. It is a major petroleum port and the terminal of the pipeline from the Grozny oil field...

Yasnaya Polyana

(Encyclopedia)Yasnaya Polyana yäˈsnīə pəlyäˈnə [key], village, central European Russia, just S of Tula. It was the birthplace and residence of Leo Tolstoy, who is buried at his estate there. The writer's ho...

Vyg

(Encyclopedia)Vyg vĭg [key], Finn. Uikujärvi, Rus. Vygozero, lake, c.300 sq mi (780 sq km), NW European Russia, in Karelia, between Lake Onega and the White Sea. It is fed by the Vyg River, which also drains it i...

Vytegra

(Encyclopedia)Vytegra vĭˈtyĭgrə [key], river, c.45 mi (70 km) long, rising near Lake Kovzhas, NW European Russia and flowing generally NW into Lake Onega. It is an important part of the Volga-Baltic Waterway. A...

Svir

(Encyclopedia)Svir svēr [key], river, c.140 mi (230 km) long, NW European Russia, flowing W from Lake Onega into Lake Ladoga. It is part of the Volga-Baltic Waterway. There are hydroelectric stations at Svirstroy ...

Taymyra

(Encyclopedia)Taymyra or Taimyra both: tīmēˈrə [key], river, c.400 mi (640 km) long, rising in the center of the Taymyr Peninsula, N Siberian Russia. It flows NE through Lake Taymyr (c.2,700 sq mi/6,990 sq km) ...

Serpukhov

(Encyclopedia)Serpukhov syĕrˈpo͝okhəf [key], city (1989 pop. 143,600), central European Russia, on the Oka River. It is an important textile center. A fortress town since 1339, it retains a stone kremlin (16th ...

Sheksna

(Encyclopedia)Sheksna shĭksnäˈ [key], river, c.100 mi (160 km) long flowing S between Lake Beloye and the Rybinsk Reservoir, NW European Russia. Cherepovets is on the river. The Sheksna forms a link in the Volga...

Rybinsk Reservoir

(Encyclopedia)Rybinsk Reservoir, artificial lake, c.2,000 sq mi (5,200 sq km), NW European Russia. It was formed in 1941 between the upper Volga River and its tributaries, the Mologa and Sheksna rivers, with the co...