看颜色：即使在同一种类的水晶中，它的不同部位的纹理、色泽也各式各有千秋。属于单色的，要色度均匀；在同一块水晶上有深浅的，则要求其色调纹路美观大方。
Another enjoyment, and delicious, experiment would be to kind significant crystals applying sugar. By heating sugar with h2o after which you can allowing this Remedy evaporate on sticks, you may variety rock candy from sugar crystals!
A crystal construction concentrates on how the atoms are organized In the crystal. Nonetheless, crystallographers have an interest in the overall condition and sizing from the crystal and also its exterior properties. To accomplish this, they need to know about the crystal system.
看原料：选料精良的水晶制品，应看不到胶口及棉絮；质地纯净、光润、晶莹为好。
Fig. four: Constructing blocks with different designs and area chemistries immediate the formation of unique crystal symmetries.
Monoclinic �?Characterised by 3 unequal axes, two of which intersect at an oblique angle, even though the third is perpendicular on the airplane of the other two.
Crystals glimpse exclusive from many other rocks and minerals, but �?barring a handful of Specific conditions �?almost all minerals hide a crystalline composition beneath the floor.
26Some of the best drinking glasses are made from lead crystal.一些最精致的酒杯是用铅晶质玻璃制成的。《柯林斯英汉双解大词典》
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⑤化学稳定�?非常好，在常温下仅溶解于氢氟酸，不溶解于其它各类酸、碱。在高温高压条件下可溶解于碳酸钠溶液中。
With the Cambridge English Corpus We say the chain topology while in the large w area acts as being the proverbial ' scratch-on-theglass ' necessary within the organic chemistry laboratory to produce crystals. From the Cambridge English Corpus Consistent-stress and temperature molecular-dynamics simulations of crystals with the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. From your Cambridge English Corpus In combination with these, dust particles are actually observed in low-temperature plasmas, like Individuals Employed in plasma processing and plasma crystals. With the Cambridge English Corpus The final Portion of the guide concentrates on peculiarities of strongly coupled dusty plasmas, including the development of dust crystals and involved beautiful forces. Through the Cambridge English Corpus Entire characterization of harm threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. Within the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or even more irregular, Key morphologies were not noticed. Within the Cambridge English Corpus See all samples of crystal These illustrations are from corpora and from sources online. Any viewpoints from the illustrations don't symbolize the belief in the Cambridge Dictionary editors or of Cambridge College Press or its licensors.
Crystals are don't just renowned for his or her physical appearance, but distinctive crystals of different resources and formations can result in a vast assortment of works by using and Actual physical Qualities.
14For illustration, We have now Quartz crystal clocks and watches correct to within just one particular moment a year.例如，我们使用的每年误差不超过1分钟的石英水晶钟表和手表。
A different form of crystalline carbon is based over a molecule with sixty carbon atoms termed buckminsterfullerene (C60). The molecular condition is spherical. Each and every carbon here is bonded to 3 neighbours, as in graphite, as well as the spherical condition is attained by a combination of 12 rings with five sides and twenty rings with 6 sides. Similar buildings have been to start with visualized from the American architect R. Buckminster Fuller for geodesic domes.