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girasol n. 火蛋白石 火蛋白石 girasol n 1: an opal with flaming orange and yellow and red colors [ synonym: { fire opal}, { girasol}] 2: tall perennial with hairy stems and leaves; widely cultivated for its large irregular edible tubers [ synonym: { Jerusalem artichoke}, { girasol}, { Jerusalem artichoke sunflower}, { Helianthus tuberosus}] Girasole \ Gir" a* sole\ Girasol \ Gir" a* sol\, n. [ It. girasole, or F. girasol, fr. L. gyrare to turn around sol sun.] [ 1913 Webster] 1. ( Bot.) See { Heliotrope}. [ Obs.] [ 1913 Webster] 2. ( Min.) A variety of opal which is usually milk white, bluish white, or sky blue; but in a bright light it reflects a reddish color. [ 1913 Webster]
Opal \ O" pal\, n. [ L. opalus: cf. Gr. ?, Skr. upala a rock, stone, precious stone: cf. F. opale.] ( Min.) A mineral consisting, like quartz, of silica, but inferior to quartz in hardness and specific gravity. [ 1913 Webster] Note: The { precious opal} presents a peculiar play of colors of delicate tints, and is highly esteemed as a gem. One kind, with a varied play of color in a reddish ground, is called the { harlequin opal}. The { fire opal} has colors like the red and yellow of flame. { Common opal} has a milky appearance. { Menilite} is a brown impure variety, occurring in concretions at Menilmontant, near Paris. Other varieties are { cacholong}, { girasol}, { hyalite}, and { geyserite}. [ 1913 Webster]
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