Crystal Fundamentals Explained
Crystal Fundamentals Explained
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其它描述：《庶物异名疏》中说： �?水精出大秦国，一名黎�?�?。结晶完整的水晶晶体，就如参差交错的马齿，所以人们又叫它马牙石。先民们最早用它研磨成眼镜片，因而送它一个眼镜石的绰号。水晶有通称，也有俗称。广州一带称水晶叫晶玉，又名鱼脑冻；江苏东海县山民发现水晶会 �?窜火�?�?，于是给它起个放光石的俗名。世间一物多名，不足为奇，而像水晶拥有这么多的别称，实不多见。瞧，从水玉、水碧、白玉、玉瑛、水精石英、黎难、晶玉到菩萨石、马牙石、眼镜石、放光石、千年冰、高山冻、鱼脑冻等等，简直构成一部奇石鉴赏史。
12He tried once more in many other cities and succeeded with Crystal Caramels.他又在其他几个城市再次尝试，并成功制出了水晶焦糖。
Chemical Bonds The kinds of chemical bonds fashioned amongst atoms or groups of atoms in crystals depend upon their dimensions and electronegativity. You will discover 4 categories of crystals as grouped by their bonding:
第一种是“全包裹体”，在水晶结晶的时候把这些物质包裹在晶体里面，这类包裹体所形成的各种景象，大多保持了水晶结晶时的原状，也就是说保存了几亿年的原状，极少受到自然环境的影响。
Fig. 4: Making blocks with distinctive designs and surface area chemistries direct the formation of distinct crystal symmetries.
They will ultimately come up with a wonderful little uniform cluster of atoms, This really is the entire process of developing crystals. The greater they will come collectively, the greater of a development will be seen on the bare eye. Experts can establish what mineral They may be thinking about by how the crystals kind.
Insert to phrase checklist Increase to word checklist [ C/U ] transparent rock that appears like ice, or a bit of it
Hexagonal �?Characterized by four axes, a few of which happen to be equivalent in duration and intersect at a hundred and twenty levels, with a fourth axis perpendicular to the other three.
本词条由中国科学院大学地球与行星科学学院、中国科学院地质与地球物理研究所 参与编辑并审核，经科普中国·科学百科认�?。
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。
From your Cambridge English Corpus We say the chain topology while in the high w location acts as the proverbial ' scratch-on-theglass ' needed within the organic chemistry laboratory to produce crystals. Within the Cambridge English Corpus Continuous-force and temperature molecular-dynamics simulations of crystals in the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. In the Cambridge English Corpus Besides these, dust particles are already noticed in low-temperature plasmas, like All those Employed in plasma processing and plasma crystals. In the Cambridge English Corpus The final A part of the ebook focuses on peculiarities of strongly coupled dusty plasmas, like the formation of dust crystals and related desirable forces. From the Cambridge English Corpus Comprehensive characterization of injury threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. Within the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or maybe more irregular, Principal morphologies were not observed. click here Through the Cambridge English Corpus See all examples of crystal These illustrations are from corpora and from resources on the net. Any viewpoints in the examples do not symbolize the impression of the Cambridge Dictionary editors or of Cambridge College Push or its licensors.
水晶的价值还与块体大小有关，同样的颜色和净度级别，块越大越难得。有时候质量级别虽然低一些，但块体够大，也可能价格高于高级别的小晶体
Crystals are categorized on the whole groups, which include insulators, metals, semiconductors, and molecular solids. Only one crystal of an insulator is usually transparent and resembles a piece of glass. Metals are shiny Until they have rusted. Semiconductors are occasionally shiny and occasionally transparent but are hardly ever rusty. Several crystals could be categorized as just one form of strong, while others have intermediate behaviour. Cadmium sulfide (CdS) could be prepared in pure type and is an excellent insulator; when impurities are added to cadmium sulfide, it will become an interesting semiconductor.
水晶观赏石在形态、质地、内部特征等方面往往十分奇异。大自然有无限风光，都可以在包裹体水晶种找到缩影。