n. [ F. béryl, OF. beril, L. beryllus, Gr. bh`ryllos, prob. fr. Skr. vai&dsdot_;ūrya. Cf. Brilliant. ] (Min.) A mineral of great hardness, and, when transparent, of much beauty. It occurs in hexagonal prisms, commonly of a green or bluish green color, but also yellow, pink, and white. It is a silicate of aluminum and beryllium. The aquamarine is a transparent, sea-green variety used as a gem. The emerald is another variety highly prized in jewelry, and distinguished by its deep color, which is probably due to the presence of a little oxide of chromium. [ 1913 Webster ]
n. [ Beryl + -oid. ] (Crystallog.) A solid consisting of a double twelve-sided pyramid; -- so called because the planes of this form occur on crystals of beryl. [ 1913 Webster ]
[るり, ruri] (n) (1) lapis lazuli; (2) (abbr) (See 瑠璃色) lapis lazuli (color); (3) (abbr) (See 吠瑠璃) beryl; (4) (abbr) (See 小瑠璃, 大瑠璃, 瑠璃鶲) mall blue passerine bird (esp. the blue-and-white flycatcher and the Siberian blue robin, but also the red-flanked bluetail); (5) (obsc) glass #16,484[Add to Longdo]
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