The 5-Second Trick For Crystal
The 5-Second Trick For 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。
Bismuth (Bi) seems to become a metallic, but the amount of electrons obtainable for electrical conduction is comparable to that of semiconductors. In actual fact, bismuth known as a semimetal. Molecular solids are often crystals fashioned from molecules or polymers. They are often insulating, semiconducting, or metallic, based on the type of molecules in the crystal. New molecules are continually becoming synthesized, and a lot of are created into crystals. The amount of different crystals is enormous.
景观水晶,就是包裹体组成各种造型特异的水晶,有的似山水,有的似人物,有些像文字,有些像动物,植物,器物等等。
Fig. 3: A library of lattice symmetries could be accessed by transforming the particle Main and DNA shell.
Crystalline construction is characterized by a geometrical, repeating sample of symmetric molecular structure. The arrangement of atoms forms these requested, repeating styles.
Monoclinic �?Characterized by a few unequal here axes, two of which intersect at an oblique angle, whilst the 3rd is perpendicular to the aircraft of the other two.
⑩、雷射内雕:以计算机辅助激光设备在水晶对象中进行三维图案的成型,艺术效果好,可以任意表达各类图案,图形,达到逼真效果
The weather are found in many different crystal packing preparations. The most common lattice structures for metals are those obtained by stacking the atomic spheres into quite possibly the most compact arrangement.
水晶常以晶簇、晶洞形式产出,其中水晶洞一般存在于由火山喷发而形成的巨厚熔岩流层的火成岩与玄武岩中。火山喷发时所含的气体或热水溶蚀等作用导致岩层中出现大量的孔隙,当富含硅质矿物的流体进入较薄的熔岩孔隙中,且温、压条件合适时将结晶沉淀出水晶等矿物。
英语-中文(简体) phrase #beta Beta /beta #preferredDictionaries ^chosen name /picked /preferredDictionaries
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。
隐晶类水晶外观是一块块的,不是成六角水晶簇状,但他们却也是属六方晶系的。但我们不能以肉眼观察到他们的六角形结晶,因为结晶的体积极为细小,需以显微镜协助下才能看到六角开结晶。而此类水晶非常平滑,因为结晶之间有“水化硅石”填补,玛瑙便属于此类。
crystal, any strong product in which the component atoms are arranged in the definite sample and whose floor regularity displays its inner symmetry.
Tetragonal �?Characterised by 3 mutually perpendicular axes, two of that happen to be equal in duration, when the 3rd is for a longer period or shorter and perpendicular to another two.