morganite

/mawr"geuh nuyt'/, n.
rose-colored beryl.
[1910-15; named after J. P. MORGAN; see -ITE1]

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      gem-quality beryl (q.v.) coloured pink or rose-lilac by the presence of cesium. It is often found with peach, orange, or pinkish yellow beryl (also called morganite); these colours transform to pink or purplish upon high-temperature heat treatment. Morganite crystals often show colour banding: blue near the base, through nearly colourless in the centre, to peach or pink at the terminations. This colour change is probably caused by differences in the composition of the solution from which the crystal grew. Morganite is commonly found as squat, tabular crystals in lithia pegmatites, as in southern California and New England.

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Universalium. 2010.

Look at other dictionaries:

  • Morganite — Morganite, also known as Pink Beryl, Rose Beryl, Pink Emerald, and Cesian Beryl, is a rare light pink to rose colored gem quality variety of the mineral beryl (Be3Al2(SiO3)6), which is better known for its green variety (emerald) and its blue… …   Wikipedia

  • Morganite — Catégorie IX : silicates[1] Morganite, San Diego County, California, USA, 9,7×7,7×5,9 cm …   Wikipédia en Français

  • morganite — ● morganite nom féminin Variété de béryl rose …   Encyclopédie Universelle

  • morganite — ☆ morganite [môr′gən īt΄ ] n. [after MORGAN3 J(ohn) P(ierpont)] a transparent, rose colored variety of beryl, used as a gem …   English World dictionary

  • morganite — noun A gemstone of pegmatite deposits. Morganite is a transparent pink variety of beryl. ,Chemical composition: Beryllium aluminum silicate, BeAlSiO ,Physical properties: Mohs Hardness: 8.0 Specific gravity: 2.6 2.8 Color: Pink Luster: Glassy,… …   Wiktionary

  • morganite — noun Etymology: J. P. Morgan died 1913 Date: 1911 a rose colored gem variety of beryl …   New Collegiate Dictionary

  • morganite — mor·ga·nì·te s.f. TS mineral. varietà di berillo con diverse sfumature di rosa, proveniente spec. dal Madagascar, usata come pietra preziosa {{line}} {{/line}} DATA: 1958. ETIMO: der. di Morgan, nome del finanziere statunitense John Pierpont… …   Dizionario italiano

  • morganite — pl.f. morganiti …   Dizionario dei sinonimi e contrari

  • morganite — n. gemstone with a pink coloring …   English contemporary dictionary

  • morganite — mor·gan·ite …   English syllables

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