Crystal Fundamentals Explained
Crystal Fundamentals Explained
Blog Article
Not all crystals are Similarly crystalline. There are frequently impurities, as well as ionic & covalent concerning molecules can develop vastly diverse structures out of precisely the same substance. An awesome example of this are diamonds and graphene.
Cite Although just about every effort has long been made to abide by citation design procedures, there might be some discrepancies. Be sure to confer with the appropriate model guide or other resources Should you have any inquiries. Find Citation Design
对水晶进行评价主要依据其颜色、透明度、大小、净度、特殊图案及是否有光学效应等方面。以颜色纯正，浓度较高，内部无瑕为好。种类上紫晶最贵，其次为黄晶、烟晶、无色水晶和芙蓉石。有特殊光学效应的水晶的价格更高。
The requested interior composition of large crystals, similar to the fluorite and quartz proven in this article, is reflected inside their geometric shapes.
《全唐诗》卷七八五载《白雪歌》：“鸟啄冰潭玉镜开，风敲檐溜水晶折。”
These examples are from corpora and from resources on the internet. Any views inside the illustrations do not characterize the feeling with the Cambridge Dictionary editors or of Cambridge University Push or its licensors.
时尚的收藏爱好者喜欢收藏天然水晶，却常常因为在市场上面对大量的合成水晶看走了眼。市面上的水晶：
如果水晶内部杂质中有传说中人物的造型，如佛、星座、生肖等价值可能要高于同等颜色和净度的水晶。
24I need to make my meaning crystal apparent.我想把我的意思解释得清清楚楚。《牛津词典》
Crystals with apparent flat faces are named euhedral crystals, even though All those missing defined faces are termed anhedral crystals. Crystals consisting of purchased arrays of atoms that aren't always periodic are identified as quasicrystals.
Within the Cambridge English Corpus We are saying the chain topology during the high w location functions as the proverbial ' scratch-on-theglass ' get more info necessary in the organic and natural chemistry laboratory for making crystals. From the Cambridge English Corpus Constant-tension and temperature molecular-dynamics simulations of crystals in the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. From the Cambridge English Corpus Along with these, dust particles happen to be noticed in very low-temperature plasmas, like Those people Utilized in plasma processing and plasma crystals. Within the Cambridge English Corpus The ultimate Component of the reserve focuses on peculiarities of strongly coupled dusty plasmas, including the formation of dust crystals and associated eye-catching forces. From the Cambridge English Corpus Complete characterization of damage threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. In the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or more irregular, Most important morphologies were not noticed. With the Cambridge English Corpus See all samples of crystal These examples are from corpora and from resources on the internet. Any viewpoints in the illustrations do not depict the belief on the Cambridge Dictionary editors or of Cambridge College Press or its licensors.
国家还并未给天然水晶提供一个等级划分的具体标准，水晶品种繁杂，每一品种都有他不同的评判标准。
压电性：水晶晶体受到压力时会产生电荷；反之，受到电压作用时，晶体会产生频率很高的振动。水晶具有可使压力与电荷相互转移的性能，称压电性。
⑥白色的包裹体有蚀变的绿泥石、云母、愈合裂隙、水晶、方解石、透闪石等。