Crystal Fundamentals Explained
Crystal Fundamentals Explained
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This idea applies equally in one, two, and a few-dimensional Areas. The complete crystal lattice is often produced by repeatedly reproducing the pattern with the device mobile in all directions.
23Sometimes, on the other hand, the crystal sort of the silicate inclusions is noticed to resemble more closely the internal construction of diamond than that of other silicate minerals.然而,有时观察到硅酸盐包裹体的晶体形态比其他硅酸盐矿物更接近金刚石的内部结构。
结晶的形状非常细小,需要用显微镜才能看得清楚,外观上看起来是平滑、块状。常见最多的是各式玛瑙
Massive crystals of diamond are beneficial gemstones. The crystal has other intriguing Houses; it's got the highest audio velocity of any good and is the best conductor of warmth. Aside from diamond, the opposite prevalent method of carbon is graphite, which is a layered materials. Every single carbon atom has 3 coplanar in close proximity to neighbours, forming an arrangement known as the honeycomb lattice. Three-dimensional graphite crystals are acquired by stacking related levels.
You can also find lots of products that resemble crystals but are literally polycrystals. Polycrystals variety when microscopic crystals fuse together to form a strong. These resources do not encompass requested lattices.
结晶�?When sea drinking water is permitted to evaporate, salt crystals are deposited. 海水蒸发后,盐的结晶体就沉淀下来。
解理:无解理。所谓解理是指矿物被打击时,沿一定方向有规则地裂开形成光滑平面的性质。根据解理的程度可以分为五类:极完全解理、完全解理、中等解理、不完全解理和无解理,水晶属于无解理。
1A crystal chandelier lit the area.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》
水晶包裹体丰富多彩,从气体、液体到各种矿物质,甚至宝石,均可被包含于水晶内,各种包裹体所形成的景象更是变化万千。按照包裹体的内容,常把包裹体水晶分为一下八类:
crystal The recently crystallized quartz grains are characterised by elongate crystals oriented oblique towards the shear band margins, defining a standard grain-condition foliation. 来自 Cambridge English Corpus We say the chain topology while in the check here large w location acts as the proverbial ' scratch-on-theglass ' desired in the natural chemistry laboratory to help make crystals. 来自 Cambridge English Corpus The age scatter between the individual crystals may well reflect incorporation of xenocrysts from before magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene forms neutral to pale brown, subhedral to anhedral crystals, once in a while containing inclusions of plagioclase microlaths and opaque phases.
16I opened the box and observed a bit of crystal snowflake as well as a greeting card with "Pleased Birthday" inside the blank paper.我打开盒子并看见在白纸中有一片水晶雪花和一张写着“生日快乐”的贺卡。
There are only some diverse device-mobile designs, so many different crystals share an individual device-mobile style. A significant attribute of the unit cell is the amount of atoms it incorporates. The overall variety of atoms in the complete crystal would be the range in Every cell multiplied by the volume of device cells. Copper and aluminum (Al) Every have just one atom for each unit cell, while zinc (Zn) and sodium chloride have two. Most crystals have only a few atoms for each device cell, but there are a few exceptions. Crystals of polymers, by way of example, have thousands of atoms in each unit cell.
⑦双色水晶:一种紫色和黄色共存一体的水晶,紫色、黄色之间界限较明显,分别占据晶块的一部分。
水晶观赏石在形态、质地、内部特征等方面往往十分奇异。大自然有无限风光,都可以在包裹体水晶种找到缩影。