smoky quartz

smoky quartz
noun Date: 1837 cairngorm

New Collegiate Dictionary. 2001.

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  • Smoky quartz — Smoky or smokey quartz is a brown to black variety of quartz.[1] Like other quartz gems, it is a silicon dioxide crystal. The smoky colour results from free silicon, formed from the silicon dioxide by natural irradiation …   Wikipedia

  • Smoky quartz — Smoky Smok y, a. [Compar. {Smokier}; superl. {Smokiest}.] 1. Emitting smoke, esp. in large quantities or in an offensive manner; fumid; as, smoky fires. [1913 Webster] 2. Having the appearance or nature of smoke; as, a smoky fog. Unlustrous as… …   The Collaborative International Dictionary of English

  • smoky quartz — n. CAIRNGORM …   English World dictionary

  • smoky quartz — a smoky yellow to dark brown or black variety of quartz, used as a gem. Also called cairngorm, Cairngorm stone. [1830 40] * * * Common, coarse grained variety of quartz that ranges in colour from nearly black through smoky brown. No distinct… …   Universalium

  • smoky quartz — smok′y quartz′ n. mir jew a smoky yellow to dark brown or black variety of quartz, used as a gem • Etymology: 1830–40 …   From formal English to slang

  • smoky quartz — noun a smoky yellow or brown quartz • Syn: ↑cairngorm • Hypernyms: ↑quartz …   Useful english dictionary

  • smoky quartz — noun A brown to black variety of quartz …   Wiktionary

  • smoky quartz — noun a semi precious variety of quartz ranging in colour from light greyish brown to nearly black …   English new terms dictionary

  • Smoky — Smok y, a. [Compar. {Smokier}; superl. {Smokiest}.] 1. Emitting smoke, esp. in large quantities or in an offensive manner; fumid; as, smoky fires. [1913 Webster] 2. Having the appearance or nature of smoke; as, a smoky fog. Unlustrous as the… …   The Collaborative International Dictionary of English

  • Quartz — Quartz, n. [G. quarz.] (Min.) A form of silica, or silicon dioxide ({SiO2}), occurring in hexagonal crystals, which are commonly colorless and transparent, but sometimes also yellow, brown, purple, green, and of other colors; also in… …   The Collaborative International Dictionary of English

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