Quartz

[kwɔːts] or [kwɔrts]

解释:

(noun.) a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities.

手打:斯蒂芬--From WordNet

解释:

(n.) 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 cryptocrystalline massive forms varying in color and degree of transparency, being sometimes opaque.

校对:斯坦顿

同义词及近义词：

n. Silex, silica, ROCK-CRYSTAL.

编辑:梅齐

解释:

n. the common form of native silica or the oxide of silicon occurring both in crystals and massive scratching glass easily and becoming positively electrical by friction colourless when pure—Rock-crystal Common and Compact Quartz.—ns. Quartz′-crush′er -mill a machine mill where auriferous quartz is reduced to powder and the gold separated by amalgamation.—adj. Quartzif′erous.—ns. Quartz′ite Quartz′-rock a common rock usually white gray or rusty in colour and composed of an aggregate of quartz-grains welded together.—adjs. Quartzit′ic; Quartz′ose of or like quartz; Quartz′y.

编辑:诺拉