beryl

ber·yl

B0207400 (bĕr′əl)n. A transparent to translucent glassy mineral, essentially aluminum beryllium silicate, Be₃Al₂Si₆O₁₈, occurring in hexagonal prisms and constituting the chief source of beryllium. Transparent varieties in white, green, blue, yellow, or pink are valued as gems.

[Middle English, from Old French, from Latin bēryllus, from Greek bērullos, from bērullion, from Prakrit veruliya, from Pali veḷuriya; perhaps akin to Tamil veḷiru or viḷar, to whiten, become pale.]

ber′yl·line (-ə-lĭn, -līn′) adj.

beryl

(ˈbɛrɪl) n (Minerals) a white, blue, yellow, green, or pink mineral, found in coarse granites and igneous rocks. It is a source of beryllium and is sometimes used as a gemstone; the green variety is emerald, the blue is aquamarine. Composition: beryllium aluminium silicate. Formula: Be3Al2Si6O18. Crystal structure: hexagonal[C13: from Old French, from Latin bēryllus, from Greek bērullos, of Indic origin] ˈberyline adj

ber•yl

(ˈbɛr əl)

n. a mineral, beryllium aluminum silicate, Be₃Al₂Si₆O₁₈, varieties of which are the gems emerald and aquamarine: the principal ore of beryllium. [1275–1325; Middle English beril (< Anglo-French) < Late Latin bērillus, Latin bēryllus < Greek bḗryllos] ber•yl•ine (ˈbɛr ə lɪn, -ˌlaɪn) adj.

ber·yl

(bĕr′əl) A usually green or bluish-green mineral that is a silicate of beryllium and aluminum. Beryl occurs as transparent to translucent prisms in igneous and metamorphic rocks. Transparent varieties, such as emeralds, are valued as gems. Beryl is the main source of the element beryllium.

Thesaurus

Noun

beryl - the chief source of beryllium; colored transparent varieties are valued as gemsatomic number 4, Be, beryllium, glucinium - a light strong brittle grey toxic bivalent metallic elementmineral - solid homogeneous inorganic substances occurring in nature having a definite chemical compositionaquamarine - a transparent variety of beryl that is blue green in coloremerald - a green transparent form of beryl; highly valued as a gemstonemorganite - a kind of pink beryl used as a gemstone

Translations

beryl

(bĕr`ĭl), mineral, a silicate of beryllium and aluminum, Be₃Al₂Si₆O₁₈, extremely hard, occurring in hexagonal crystals that may be of enormous size and are usually white, yellow, green, blue, or colorless. Beryl is commonly used as a gemstone. The refractive index is low, and the stones have little or no fire. The most valued variety of beryl is emeraldemerald,
the green variety of beryl, of which aquamarine is the blue variety. Chemically, it is a beryllium-aluminum silicate whose color is due to small quantities of chromium compounds.
..... Click the link for more information. . An aquamarineaquamarine
[Lat.,=seawater], transparent beryl with a blue or bluish-green color. Sources of the gems include Brazil, Siberia, the Union of Myanmar, Madagascar, and parts of the United States. Oriental aquamarine is a transparent crystalline corundum with a bluish tinge.
..... Click the link for more information. is a blue to sea-green beryl; morganites are rose-red beryls. It is the principal raw material for the element beryllium and its compounds.

Beryl

a mineral of the silicate class. Its chemical formula is Al₂Be₃(Si₆O₁₈), but because of the constant presence of alkalies (Na, Cs, Rb), Li, Mn, Fe²⁺, Fe³⁺, and Cr³⁺, and also water and gases (helium and argon), the composition of beryl is much more complicated. Various types of beryl—alkali-free, sodium, sodium-lithium, and lithium-cesium—are distinguished according to the alkali and lithium content. Beryl crystallizes in a hexagonal system, forming prismatic, acicular, or tabular crystals or complete granular masses. Beryl’s hardness on the mineralogical scale is 7.5, and its density is 2,650–2,800 kg/m³. The color of beryl is extremely varied. Depending upon the color, transparency, and impurities, the following types of beryl are distinguished: beryl proper—a green or yellowish-white cloudy crystal; aquamarine—transparent greenish-blue (the color of seawater) or dark blue crystals, colored with Fe²⁺ impurities; heliodor—yellow because of Fe²⁺ impurities; emerald—a transparent crystal of a deep grass-green color, colored by Cr³⁺; rosterite—colorless or pink owing to 5 percent or more Li¹⁺ and Cs¹⁺ impurities; and morganite—pink owing to Mn³⁺ impurities. Beryl forms in granitic pegmatites, greisens, skarns, and pneumatolytic-hydrothermal deposits of the metasomatic type. Beryl is one of the major minerals in beryl ore, from which beryllium is smelted. Transparent beautifully colored or clear crystals are cut to make high-quality precious stones.

REFERENCE

Beus, A. A. Geokhimiia berilliia i geneticheskie tipy berillievykh mestorozhdenii. Moscow, 1960. G. P. Barsanov

beryl

a white, blue, yellow, green, or pink mineral, found in coarse granites and igneous rocks. It is a source of beryllium and used as a gemstone; the green variety is emerald, the blue is aquamarine. Composition: beryllium aluminium silicate. Formula: Be₃Al₂Si₆O₁₈. Crystal structure: hexagonal

beryl

ber·yl

beryl

ber•yl

ber·yl

beryl

beryl

Beryl

REFERENCE

beryl

beryl

Words related to beryl

noun the chief source of beryllium

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