Samarium

Samarium

A bright, silvery, lustrous, metallic element of the rare-earth group. Symbol, Sm. It is found along with other members of the rare-earth elements in many minerals, including 2747 monazite and bastnasite, which are commercial sources. Used for carbon-arc lighting for the motion picture industry, for permanent magnets, and in optical masers and lasers.

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Part of Speech: noun
Synonym(s):
Blossary:
Industry/Domain: Mining
Category: General mining; Mineral mining
Government Agency: USBM
Product: Dictionary of Mining, Mineral, & Related Terms - 2nd Edition
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samarium

Chemistry; General chemistry

A chemical element with the symbol Sm, atomic number 62 and atomic weight 150. 36. It is a moderately hard silvery metal which readily oxidizes in air.

samarium

Science; General science

A chemical element, symbol Sm, atomic number 62, belonging to the rare-earth group. Its atomic weight is 150.35, and the naturally occurring isotopes are 144 Sm (3.09%), 147 Sm ...

samarium

Mining; General mining; Mineral mining

A bright, silvery, lustrous, metallic element of the rare-earth group. Symbol, Sm. It is found along with other members of the rare-earth elements in many minerals, including 2747 ...

samarium

Medical; Health care; Medicine

Samarium. An element of the rare earth family of metals. It has the atomic symbol Sm, atomic number 62, and atomic weight 150.36. The oxide is used in the control rods of some ...

samarium

Aviation; Aeronautics

A pale gray, rare-earth, metallic chemical element. Samarium’s symbol is Sm, its atomic number is 62, and its atomic weight is 150.35. Samarium is used in laser technology and as ...

samarium

Language; Dictionaries

A rare metallic element of doubtful identity.

asteroid mining

Mining; General mining

The future industry of sending spacecraft to asteroids in order to harvest their natural resources and bring them back to civilization for use. On April 24th 2012, the first real ...

rock

Mining; General mining

A mineral that forms inside the earth as marble and granite are rocks; a huge amount of stone that forms a cliff or mountain is called as rock.

beryl

Mining; General mining

A greenish mineral that usually lets light shine through it and is found mostly in igneous and metamorphic rocks.

corundum

Mining; General mining

A very hard mineral made mainly of aluminum and oxygen. Rubies and sapphires are types of corundum.

feldspar

Mining; General mining

A mineral that makes up more than 60 percent of the Earth's crust. The pink and white flecks in granite consist of feldspar.

geode

Mining; General mining

A hollow, rounded rock that is lined on the inside with crystals is called geode.

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La Rochelle, Siege of

Huguenot stronghold on the west coast of France, besieged by Cardinal Richelieu for 15 months in 1627–28. Three-quarters of the population died of ...