The best Side of Crystal
The best Side of Crystal
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Calcite crystals are often used in optical products, and even the graphite in pencil lead are sheets of crystals that primarily split apart layer by layer to write. Silica can form silicate crystals which might be The premise for quartz, mica, olivine, and a number of other crystals and minerals.
⒉棉、云雾或渣状包裹体、杂质在透明水晶内部有雾蒙蒙的现象或是感觉里面像有棉絮状、渣状物质一样的包裹体，这些包裹体的存在，影响水晶的整体美观。还有的水晶内局部含有黑斑或其他颜色的斑状物质，与水晶整体不协调，被视为水晶的杂质，有这种杂质的水晶是次品。
These advances contain exotic buildings with programmable lattice symmetries and very well-described crystal routines, responsive products that leverage the intrinsic properties of nucleic acids to govern structures on demand, nanoparticle superlattices grown epitaxially from surfaces and colloidal crystals that offer insights into light-weight–matter interactions. Seeking ahead, we problem the Group to leverage the extraordinary structural control afforded by crystal engineering with DNA to synthesize courses of practical materials that press over and above what has become feasible with In a natural way transpiring crystalline elements or Individuals created by extra conventional strategies.
Substantial crystals of diamond are website valuable gemstones. The crystal has other appealing Houses; it's got the highest sound velocity of any sound and is the best conductor of heat. Besides diamond, another widespread method of carbon is graphite, that's a layered substance. Each and every carbon atom has 3 coplanar near neighbours, forming an arrangement known as the honeycomb lattice. 3-dimensional graphite crystals are obtained by stacking similar levels.
看抛光：抛光的好坏直接影响到水晶制品的身价。抛光分为软抛光与硬抛光。
当二氧化硅结晶完美时就是水晶；结晶不完美的就是石英：二氧化硅胶化脱水后就是玛瑙；二氧化硅含水的胶体凝固后就成为蛋白石；二氧化硅晶粒小于几微米时，就组成玉髓、燧石、次生石英岩。
根据包裹体和主晶宝石之间形成的先后关系可将水晶的包裹体划分以下三种类�?
As being a sizzling Answer cools or perhaps a saturated solution evaporates, particles attract close enough for chemical bonds to variety. Crystals may also variety from deposition straight from the gas phase. Liquid crystals possess particles oriented within an arranged manner, like stable crystals, nevertheless can flow.
24I want to make my meaning crystal apparent.我想把我的意思解释得清清楚楚。《牛津词典》
晶体 Silicon crystals developed within a laboratory convert mild into electrical Power. 在实验室中长成的硅晶体可将光线转变为电能。
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 vintage illustration of a around symmetric and geometrically patterned composition from ice crystals, and gemstones of all varieties are generally crystals.
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。
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。