The Basic Principles Of Crystal
The Basic Principles Of Crystal
Blog Article
天然的水晶一般都会有絮状（绵绺），也就是大家俗称的瑕疵，这是液体水落石出和二氧化碳的小孔穴，而人工合成的水晶就不会有这样的特征。
Cite Although every single effort and hard work continues to be manufactured to adhere to citation fashion rules, there might be some discrepancies. Be sure to check with the suitable model manual or other resources When you've got any issues. Choose Citation Style
A simple strategy in crystal constructions is definitely the unit cell. It's the smallest unit of volume that allows identical cells for being stacked with each other to fill all space. By repeating the sample on the unit mobile repeatedly in all directions, your entire crystal lattice is usually constructed. A cube is the simplest example of a device mobile. Two other examples are proven in Determine one. The 1st may be the device mobile to get a encounter-centred cubic lattice, and the next is to get a human body-centred cubic lattice. These structures are discussed in the following paragraphs.
养殖晶：养殖晶是指，用天然水晶做种子，然后赋予天然水晶生长的高压条件，养殖器中有富含二氧化硅的分子。然后二氧化硅分子围绕天然水晶种生长，这样的水晶成分（分子式）与天然水晶是一摸一样的，唯一有差别的是，这样的水晶磁场作用没有天然水晶强。
2She was donning a strand of crystal beads.她戴着一串水晶珠子。《柯林斯英汉双解大词典》
These illustrations are from corpora and from resources on the net. Any thoughts inside the examples do not characterize the view with the Cambridge Dictionary editors or of Cambridge University Push or its licensors.
水晶的评价标准和高端宝石有所不同。多数高端宝石把颜色放在评价的第一位，而对水晶来说，颜色和净度（水晶行业称作晶体）是近乎同等重要的因素：
如果水晶内部杂质中有传说中人物的造型，如佛、星座、生肖等价值可能要高于同等颜色和净度的水晶。
第三种是“皮景”，因某些其他的矿物与水晶体共生，或由于其他的物质侵蚀而依附于水晶表面，或者是水晶受自然环境的影响，在水晶表面出现蚀象，形成了一些景象或图案，这种景观存在于水晶表面。
22Working from what The us presently is aware of about by itself, the bureau's professionals along with other demographers offer an irresistible, if clouded, crystal ball between their visions.
地质学家目前为止对晶洞形成还没有广泛认同的理论，但相信晶洞可以在任何埋藏的空腔内形成。这些空腔可以是火成岩中的气泡、树根下的空穴，甚至动物挖的地洞。经过漫长时间，空腔的外壁变硬，溶解的矽酸盐或方解石沉积到内壁。再经过漫长的时间，缓慢渗入的矿物使得晶体在空腔内部结晶。
There are actually other minerals and molecules which can sort these crystal read more lattices. Snowflakes absolutely are a typical illustration of a roughly symmetric and geometrically patterned composition from ice crystals, and gemstones of all versions are usually crystals.
水玉：中国最古老的称法叫水玉，意谓似水之玉，又说是 �?千年之冰所�?�?。唐代诗人温庭筠《题李处士幽居》写道：�?水玉簪头白角巾，瑶琴寂历拂轻�?”。水玉一词最早频繁出于《山海经》：�?又东三百里，日堂庭之�?…�?多水�?”；�?丹山出焉，东南流注于洛水，其中多水玉 ”；�?逐水出焉，北流注于渭，其中多水玉 ”。司马相如《上林赋》曰�?�?水玉磊河 �?。水晶得名水玉，古人是看�?�?其莹如水，其坚如�?�?的质地。
This crystal framework is to blame for the exceptional Bodily and chemical Attributes of sodium chloride, which includes its substantial melting level, electrical conductivity, and skill to form ionic bonds very easily.