Not known Details About Crystal
Not known Details About Crystal
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Not all crystals are Similarly crystalline. There tend to be impurities, along with the ionic & covalent amongst molecules can develop vastly distinctive constructions out of the same material. An awesome illustration of this are diamonds and graphene.
无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度，越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏，就没有利用价值。
A crystal construction concentrates on how the atoms are arranged Within the crystal. Having said that, crystallographers are interested in the general condition and dimensions from the crystal and its external traits. To accomplish this, they should find out about the crystal method.
Huge crystals of diamond are important gemstones. The crystal has other fascinating Homes; it's the highest sound velocity of any sound and is the best conductor website of heat. Besides diamond, the other typical type of carbon is graphite, and that is a layered material. Each and every carbon atom has 3 coplanar in close proximity to neighbours, forming an arrangement called the honeycomb lattice. Three-dimensional graphite crystals are acquired by stacking very similar layers.
C2 [ U ] transparent glass of really high-quality, usually with its floor Slash into sensitive designs:
⑧、雕刻：立体感强，工艺高，做工精细，成本高。分手工雕刻图形、机器雕刻文字。
对任何宝石来说，颜色都是非常重要的，水晶也不例外。如果是水晶晶体是有颜色的，如粉水晶、黄水晶、紫水晶等，其颜色评价的最高标准则是明艳动人，不带有灰色、黑色、褐色等其他色调。如粉水晶，颜色以粉红为佳；紫水晶，要求颜色为鲜紫，纯净不发黑；黄水晶，要求颜色不含绿色、柠檬色调，以金橘色为佳。对于发晶来说，晶体的颜色也是很重要的。相同发丝的金发晶，晶体完全无色（白水晶）和晶体略偏茶色，肉眼的视觉观感也是有差别的，所以前者的价格会高于后者。
②固体包裹体：指呈固态相存在包裹体，多因岩浆、热液、变质作用等形成的早期结晶物被水晶捕获而形成。
24I intend to make my meaning crystal very clear.我想把我的意思解释得清清楚楚。《牛津词典》
A crystal system refers back to the classification of crystals dependant on the geometric arrangement and symmetry of their lattice structures. You can find seven key crystal techniques:
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。
Fig. 1: Schematic of crystal development from constructing blocks composed of a particle core as well as a shell of DNA ligands hooked up to your particle floor.
水精：水晶为何称为水精，《广雅》有巧解：�?水之精灵�?”；李时珍则说：�?莹洁晶光，如水之精英 ”。细加考究，此称还蕴含浓厚的宗教意味呢。水精一名，最初见于佛书，后汉支曜翻译的《具光明定意经》说：�?其所行道，色如水�?�?。
Tetragonal �?Characterised by a few mutually perpendicular axes, two of which are equal in size, though the 3rd is extended or shorter and perpendicular to the other two.