The Basic Principles Of Crystal
The Basic Principles Of Crystal
Blog Article
Calcite crystals will often be Employed in optical devices, and also the graphite in pencil direct are sheets of crystals that fundamentally split aside layer by layer to jot down. Silica can type silicate crystals which might be The idea for quartz, mica, olivine, and all kinds of other crystals and minerals.
Crystals are lovely rock formations which have impressed humans for Many decades. They can be used for several various things, not just for decoration. A lot of the very first radios at any time invented employed crystals to transmit the radio waves. Some instruments, like quartz watches and laser crystals, use Distinctive Qualities and harmonic abilities of crystals for making extremely exact measurements and adjustments.
4Without a crystal ball, It can be difficult to state exactly where we will be future 12 months.不用水晶球预卜未来，我们说不准明年处境如何呀。《牛津词典》
Include to phrase record Insert to term checklist C2 [ U ] clear glass of quite high quality, normally with its floor cut into sensitive patterns
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》
Lattices may have one lattice position for each mobile or multiple, yielding a complete of 14 Bravais crystal lattice sorts. Bravais lattices, named for physicist and crystallographer Auguste Bravais, explain the three-dimensional array produced by a set of discrete factors.
时尚的收藏爱好者喜欢收藏天然水晶，却常常因为在市场上面对大量的合成水晶看走了眼。市面上的水晶：
Skip to key material Thank you for browsing character.com. You might be using a browser Edition with constrained assistance for CSS. To get the very best expertise, we endorse you employ a more current browser (or turn off compatibility mode in Internet Explorer).
Cite When every energy has actually been made to stick to citation model procedures, there may be some discrepancies. You should refer to the appropriate design handbook or other resources if you have any queries. Pick Citation Design
⑤化学稳定�?非常好，在常温下仅溶解于氢氟酸，不溶解于其它各类酸、碱。在高温高压条件下可溶解于碳酸钠溶液中。
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。
Molecular Crystals: Complete molecules are bonded to each other within an structured method. A good instance is often a sugar crystal, which consists of sucrose molecules.
在透明的水晶中，隐裂纹呈亮晶晶的片状，有时还会有晕彩效应。这些裂纹是水晶在生长过程中，遇到外力挤压而在内部产生的一些隐形裂纹，隐裂纹在芙蓉石、紫水晶、白水晶球及白水晶柱中都很常见。有的裂纹后来被物质填充，形成愈合的裂纹，也就是原来的裂纹又长住了。这种裂纹对水晶的影响相对要小一些。
A different sort of crystalline carbon relies on the molecule with 60 carbon atoms termed buckminsterfullerene (C60). The molecular condition is spherical. Every carbon is bonded to a few neighbours, as in graphite, along with the spherical form is reached by a click here combination of 12 rings with 5 sides and 20 rings with 6 sides. Related structures were being initial visualized through the American architect R. Buckminster Fuller for geodesic domes.