The Basic Principles Of Crystal
The Basic Principles Of Crystal
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看颜色：即使在同一种类的水晶中，它的不同部位的纹理、色泽也各式各有千秋。属于单色的，要色度均匀；在同一块水晶上有深浅的，则要求其色调纹路美观大方。
Crystals are wonderful rock formations that have impressed human beings for thousands of yrs. They're utilized for numerous different things, not only for decoration. Lots of the to start with radios ever invented made use of crystals to transmit the radio waves. Some devices, like quartz watches and laser crystals, use Specific Attributes and harmonic capabilities of crystals to produce hugely exact measurements and adjustments.
水晶文化历史悠久，古人曾赋予它一串极富美感的雅称：水玉、水精、水碧、石英等。
③次生包裹体：指主体水晶形成后，由于环境的变化使得主晶周围的一些物质沿裂隙进入到其内部而形成的包裹体。形成的原因有出熔作用、裂隙的结晶化、以及放射性元素破坏的作用等。水晶典型的次生包裹体有胶花水晶中的氧化铁充填物等。
. These 4 buildings comprise most of the binary crystals with equal figures of cations and anions.
Lattices might have just one lattice level per cell or multiple, yielding a total of fourteen Bravais crystal lattice sorts. Bravais lattices, named for physicist and crystallographer Auguste Bravais, describe the a few-dimensional array made by a set of discrete details.
30Three times went past, and I had been surprised to see it again: many of the openings were being sewed up by slim and white thread plus they seemed such as ice crystal on winter's branches in the north.
As a scorching Answer cools or perhaps a saturated solution evaporates, particles attract near plenty of for chemical bonds to type. Crystals may also variety from deposition straight from the gasoline section. Liquid crystals possess particles oriented within an organized way, like reliable crystals, nevertheless can stream.
24I need to make my which means crystal distinct.我想把我的意思解释得清清楚楚。《牛津词典》
A crystal procedure refers to the classification of crystals depending on the geometric arrangement and symmetry of their lattice buildings. There are seven most important crystal systems:
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 that could sort these crystal lattices. Snowflakes undoubtedly are a classic illustration of a around symmetric and geometrically patterned composition from ice crystals, and gemstones of all varieties are typically crystals.
crystal, any strong material during which the ingredient atoms are arranged in the definite sample and whose floor regularity displays its click here inner symmetry.
21You all know how once you have a crystal prism and pass a beam of sunlight through it, you have a spectrum, which appears like a continuous band of rainbow hues.