pearly lustre

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• Lustre (mineralogy) — Lustre (or luster) is a description of the way light interacts with the surface of a crystal, rock, or mineral. The word lustre traces its origins back to the Latin word lux, meaning light , and generally implies radiance, gloss, or brilliance. A …   Wikipedia

• pearly — ► ADJECTIVE (pearlier, pearliest) ▪ like a pearl in lustre or colour. ► NOUN (pearlies) Brit. 1) a pearly king s or queen s clothes or pearl buttons. 2) informal a person s teeth …   English terms dictionary

• lustre — /lus teuhr/, n., v.t., v.i., lustred, lustring. Chiefly Brit. luster. * * * In mineralogy, the appearance of a mineral surface in terms of its light reflecting qualities. Lustre depends on a mineral s refractivity (see refraction), transparency,… …   Universalium

• pearly — adjective (pearlier, pearliest) resembling a pearl in lustre or colour. noun (pearlies) 1》 Brit. a pearly king s or queen s clothes or pearl buttons. 2》 (also pearly whites) informal a person s teeth. Derivatives pearliness noun …   English new terms dictionary

• Lustre — Luster Lus ter, Lustre Lus tre, n. [F. lustre; cf. It. lustro; both fr. L. lustrare to purify, go about (like the priests at the lustral sacrifice), traverse, survey, illuminate, fr. lustrum a purificatory sacrifice; perh. akin to E. loose. But… …   The Collaborative International Dictionary of English

• perlite — perlitic /perr lit ik/, adj. /perr luyt/, n. Petrog. a volcanic glass in which concentric fractures impart a distinctive structure resembling masses of small spheroids, used as a plant growth medium. Also, pearlite. [1825 35; < F; see PEARL1,… …   Universalium

• pearl — pearl1 pearler, n. pearlish, adj. pearllike, adj. /perrl/, n. 1. a smooth, rounded bead formed within the shells of certain mollusks and composed of the mineral aragonite or calcite in a matrix, deposited in concentric layers as a protective… …   Universalium

• Pearl — /perrl/, n. 1. a town in central Mississippi. 20,778. 2. a female given name. * * * I Concretion formed by a mollusk and consisting of the same material (called nacre, or mother of pearl) as the mollusk s shell. Long treasured as gemstones,… …   Universalium

• Charoite — General Category Silicate mineral Chemical formula K(Ca;Na)2Si4O10(OH;F)·H2 …   Wikipedia

• Otukaia kiheiziebisu — Drawing of the apertural view of the shell of Otukaia kiheiziebisu Scientific classification Kingdom …   Wikipedia

• augelite — ˈȯjəˌlīt, gə noun ( s) Etymology: International Scientific Vocabulary auge (from Greek augē brightness) + lite; probably originally formed as German augelith; akin to Albanian agój to dawn, Old Slavic jugŭ south; basic meaning: brightness : a… …   Useful english dictionary