About Crystal
About Crystal
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A good is crystalline if it has extensive-assortment purchase. Once the positions of an atom and its neighbours are identified at a person place, the put of each and every atom is known exactly through the crystal. Most liquids lack extended-array order, Though lots of have short-variety order. Quick variety is defined as the initial- or 2nd-nearest neighbours of the atom. In several liquids the primary-neighbour atoms are arranged in the exact same structure as during the corresponding solid stage.
the stable point out of numerous basic substances, that have a daily condition and surfaces organized in related designs
看做工:水晶制品加工过程分为两种,即磨工和雕工。如水晶项链、手链、耳环等属于研磨品;观音像、内画鼻烟壶等属于雕刻品。
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。
25If you're a Billy Crystal enthusiast, you may like this film.如果你是比利·克里斯特尔的影迷,你就会喜欢这部电影。《柯林斯英汉双解大词典》
Monoclinic �?Characterized by three unequal axes, two of which intersect at an oblique angle, while the third is perpendicular for the plane of one other two.
⑦、镀彩:运用类似电镀的手法在水晶表面以不同的色彩,层面较薄,经摩擦可划伤�?;出现划痕,由于镀彩经常位于底部,因此在镀彩底部经常采用其它对象附着,如生肖文镇。
②固体包裹体:指呈固态相存在包裹体,多因岩浆、热液、变质作用等形成的早期结晶物被水晶捕获而形成。
Q.four. What is the distinction between atomic framework and crystal composition? Ans. The main distinction between atomic composition and crystal composition lies of their definitions: atomic composition refers to how atoms are arranged inside of a solitary molecule or simply a cluster of molecules, While crystal structure problems the precise arrangement of atoms in a sound substance.
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。
say cheese something which someone who is getting a photograph of you tells you to state so that your mouth would make read more The form of a smile
水晶的价值还与块体大小有关,同样的颜色和净度级别,块越大越难得。有时候质量级别虽然低一些,但块体够大,也可能价格高于高级别的小晶体
水精:水晶为何称为水精,《广雅》有巧解:�?水之精灵�?”;李时珍则说:�?莹洁晶光,如水之精英 ”。细加考究,此称还蕴含浓厚的宗教意味呢。水精一名,最初见于佛书,后汉支曜翻译的《具光明定意经》说:�?其所行道,色如水�?�?。
Binary crystals are located in lots of structures. Some pairs of factors kind more than one composition. At place temperature, cadmium sulfide may perhaps crystallize possibly while in the zinc blende or wurtzite framework. Alumina also has two achievable structures at room temperature, α-alumina (corundum) and β-alumina. Other binary crystals show distinctive buildings at distinct temperatures. Amongst the most elaborate crystals are Individuals of silicon dioxide (SiO2), which has seven various buildings at several temperatures and pressures; the most typical of these constructions is quartz.