A good is crystalline if it's lengthy-range get. When the positions of an atom and its neighbours are recognised at a person position, the spot of every atom is understood specifically through the entire crystal. Most liquids lack very long-selection get, While lots of have limited-array buy. Shorter variety is described as the 1st- or next-nearest neighbours of the atom. In many liquids the very first-neighbour atoms are arranged in the identical composition as inside the corresponding solid period.
水晶原石观赏石充分体现了天然水晶的本质，经过抛光的水晶原石观赏石，玲珑剔透、晶莹璀璨，独具匠心的设计，恰到好处地显露出水晶的魅力。如果您想单纯的欣赏水晶，水晶原石观赏石是你的不二之选，给人一种返璞归真的感觉。
发晶的价值取决于发的颜色、罕见性及大小，一般是发色鲜艳、块度大的价格高。水胆水晶的价值主要取决于水胆及晶体的大小、透明度的高低。如果水胆较大并有一定形态，便可加工成较为珍贵的工艺品。另外水胆中的水也有一定的科学研究价值，通过它们可了解几百万年前地球上水的成分及变化。
看原料：选料精良的水晶制品，应看不到胶口及棉絮；质地纯净、光润、晶莹为好。
2She was sporting a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》
Not all crystals sort in drinking water, but almost all crystals kind the same way, atoms arrive collectively and turn into a uniformed cluster. The procedure might take as little as a couple of days to probably a thousand a long time. Normal crystals that originate from the Earth sort precisely the same way.
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。
You will find a comparable directive about crystal glass which differentiates amongst total direct crystal, lead crystal and crystal.
仿制钛晶树水晶：钛晶是水晶里价格最昂贵的，造假者当然也不会放过这么好的产品。天然的环境下，在水晶里能生长个像树一样的钛晶，完全是可能的，只是这样的货很少，那我们的造假专家是如何做的呢，白水晶底下打个洞，激光打点成板状的钛晶进去，就这样这块水晶的身价就能飙升几十倍。往往有的钛晶戒面，会采用将钛晶部位割成板状，与圆面的水晶粘合的方法来制作。
Crystals with clear flat faces are named euhedral crystals, although those lacking described faces are referred to as anhedral crystals. Crystals consisting of purchased arrays of atoms that are not always periodic are named quasicrystals.
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。
的释�?浏览 cryptologist cryptology cryptorchidism cryptosporidium crystal crystal ball crystal crystal clear idiom copyright crystalline #randomImageQuizHook.filename #randomImageQuizHook.isQuiz 用我们的趣味配图小测验考考你的词汇量
玉石纹理如果能形成美丽的花纹、图案，其价格就高，如玛瑙内红白相间的色带有规律地排列，形成缠丝玛瑙时，碧玉中的不均匀颜色形成一种风景图案时，材料的价值将提高。当水晶内包裹体形成美丽的图案时，如幽灵水晶、风景水晶，或者针状包裹体呈束状排列时，其价值都高于普通的水晶。图案越美观、越有意境越好。
crystal Alteration is variable: absent in lots of crystals, in Some others producing dense sericite aggregates which can demonstrate some recrystallization consequences to produce coarser-grained white mica. From your Cambridge English Corpus The tridymite crystals are rectangular or wedge-formed and are occasionally organized in aggregates. Through the Cambridge English Corpus Furthermore, haloarchaeal cells had click here been embedded inside salt crystals under laboratory disorders and subsequently analysed by gentle microscopy. With the Cambridge English Corpus The white clouds (commonly sparse) have been also extensively considered to be becoming composed of tiny crystals of drinking water ice, instead like cirrus within our atmosphere. Within the Cambridge English Corpus They may be found in evaporite salt lakes and may be trapped in salt crystals all through evaporation. Within the Cambridge English Corpus For that reason, the cells (organelles and membranes) are wrecked mechanically by ice crystals, resulting in death by cell lysis. From the Cambridge English Corpus The crystals were being used in the main or 2nd orders of reflection. With the Cambridge English Corpus Inside our 8xperiments, the crystals have been cubes by using a foundation location of eight e mm. From your Cambridge English Corpus Vibration-assisted intermolecular hydrogen tunneling in photoreactive doped molecular crystals : outcome of temperature and force.