李商隐，杜牧，白居易，欧阳修，苏轼，呈大昌，辛弃疾，杨万里，吴文英，杨基，魏源等诗坛，词林大家都有歌吟水晶的佳篇传世。
杂质、裂纹越少越好。质地好的水晶制品，应看不到星点状、云雾状和絮状分布的气液包裹体或组成玉石的颗粒。有裂纹、斑点，则属于次品。
Chemical Bonds The types of chemical bonds fashioned involving atoms or groups of atoms in crystals depend upon their size and electronegativity. You will discover 4 types of crystals as grouped by their bonding:
The purchased internal structure of huge crystals, much like the fluorite and quartz revealed listed here, is mirrored of their geometric shapes.
根据美国已经了解的情况，统计局的专家和其他人口统计学家在他们的视野中提供了一个不可抗拒的水晶球。
Monoclinic �?Characterized by a few unequal axes, two of which intersect at an oblique angle, although the third is perpendicular for the aircraft of another two.
Increase to phrase list Add to word list [ C/U ] transparent rock that appears like ice, or perhaps a bit of it
Crystals is usually grown less than average problems from all 92 By natural means transpiring features except helium, and helium can be crystallized at low temperatures by making use of twenty five atmospheres of force.
Numerous crystals behave like butter in that they're tough at very low temperatures but gentle at higher temperatures. They can be called solids in the least temperatures below their melting position. A doable definition of the good can be an item that retains its condition if remaining undisturbed. The pertinent issue is how long the thing keeps its condition. A remarkably viscous fluid retains its condition for an hour although not a year. A reliable ought to keep its condition for a longer period than that.
crystal The freshly crystallized quartz grains are characterised by elongate crystals oriented oblique towards the shear band margins, defining an average grain-condition foliation. 来自 Cambridge English Corpus We are saying the chain topology within the superior w location functions given that the proverbial ' scratch-on-theglass ' wanted in check here the organic and natural chemistry laboratory to generate crystals. 来自 Cambridge English Corpus The age scatter amongst the person crystals could replicate incorporation of xenocrysts from before magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene sorts neutral to pale brown, subhedral to anhedral crystals, once in a while made up of inclusions of plagioclase microlaths and opaque phases.
被主体水晶所捕获的包裹体。原生包裹体通常为固相，形态较规则。水晶中典型的原成包裹体有金红石、电气石、黄铁矿等，也会见到岩石碎屑或集合体。
Molecular Crystals: Complete molecules are bonded to one another within an structured way. An excellent example is usually a sugar crystal, which consists of sucrose molecules.
水玉：中国最古老的称法叫水玉，意谓似水之玉，又说是 �?千年之冰所�?�?。唐代诗人温庭筠《题李处士幽居》写道：�?水玉簪头白角巾，瑶琴寂历拂轻�?”。水玉一词最早频繁出于《山海经》：�?又东三百里，日堂庭之�?…�?多水�?”；�?丹山出焉，东南流注于洛水，其中多水玉 ”；�?逐水出焉，北流注于渭，其中多水玉 ”。司马相如《上林赋》曰�?�?水玉磊河 �?。水晶得名水玉，古人是看�?�?其莹如水，其坚如�?�?的质地。
Wise Vocabulary: linked terms and phrases Geology: mineralogy beneficiation crystalline deposit gemologist gemology gold dust graphite idiomorphic intercrystalline like gold dust idiom magnesium mineral nugget pyrite quasicrystal seam silicon unmined vermiculite vulcanicity See extra results » You may also uncover linked words and phrases, phrases, and synonyms while in the matters: