Crystal for Dummies
Crystal for Dummies
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8Where can we get this magic wand and crystal ball?我们到哪里获得这种魔棒和水晶玻璃球？
Crystals are attractive rock formations that have astonished human beings for A huge number of years. They're employed for several different things, not only for decoration. Many of the 1st radios ever invented employed crystals to transmit the radio waves. Some devices, like quartz watches and laser crystals, use special properties and harmonic abilities of crystals to make extremely accurate measurements and changes.
These advances include unique constructions with programmable lattice symmetries and very well-outlined crystal habits, responsive resources that leverage the intrinsic Homes of nucleic acids to manipulate structures on need, nanoparticle superlattices developed epitaxially from surfaces and colloidal crystals offering insights into light–make a difference interactions. Looking forward, we problem the Local community to leverage the remarkable structural Management afforded by crystal engineering with DNA to synthesize courses of practical elements that thrust further than what has been possible with Obviously developing crystalline elements or These made by extra typical techniques.
Fig. 3: A library of lattice symmetries may be accessed by changing the particle Main and DNA shell.
这种水晶观赏石特指水晶晶簇，它是众多单晶体集中生长在一起的晶体组合。晶簇以其晶莹剔透、独特造型而享誉水晶赏石界。
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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。
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Metallic Crystals: Metals often variety metallic crystals, where some of the valence electrons are cost-free to maneuver through the entire lattice. Iron, one example is, can form different metallic crystals.
22Working from what America currently is aware about by itself, the bureau's gurus and also other demographers supply an irresistible, if clouded, crystal ball amongst their visions.
天然性是水晶观赏石的基本特性。通常整体造型水晶矿物不饰雕琢就具备很高的观赏价值，但是包裹体水晶观赏石经常需要适当打磨抛光，这样更方便观赏水晶内部的包裹体。
You can find other minerals and molecules that could type these crystal lattices. Snowflakes really are a typical example of a around symmetric and geometrically patterned construction from ice crystals, and gemstones of all versions are generally crystals.
crystal, any reliable substance in which the ingredient atoms are organized in the definite pattern and whose surface area regularity reflects its interior symmetry.
The C60 molecules, also known as buckyballs, are really sturdy and Practically incompressible. Crystals are shaped these the balls are organized in an fcc lattice which has a one-nanometre spacing among the centres of adjacent balls. The related C70 molecule has the shape of the rugby ball; C70 molecules also variety an fcc crystal when stacked with each other. The solid fullerenes sort molecular crystals, with weak binding—furnished by van der Waals interactions—among the molecules.