 现代英汉综合大辞典
n.  【矿】石英, 水晶
 quartz clock 石英晶体钟 quartz glass 石英玻璃 quartz lamp 石英灯
现代英汉词典
n. 石英
简明英汉词典
n. 石英
柯林斯英语大词典
quartz 
[kwɔːts]
n a colourless mineral often tinted by impurities, found in igneous, sedimentary, and metamorphic rocks. It is used in the manufacture of glass, abrasives, and cement, and also as a gemstone; the violet-purple variety is amethyst, the brown variety is cairngorm, the yellow variety is citrine, and the pink variety is rose quartz. Composition: silicon dioxide. Formula: SiO&-{2}. Crystal structure: hexagonal short for quartz glass
WordNet
quartz quartzes Noun 1. colorless glass made of almost pure silica (synonym) , , , (hypernym) 2. 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 (hypernym) (hyponym) (substance-meronym) silicon, Si, atomic number 14
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