轴性、光性：一轴晶正光性。正交偏光下所看到的一轴晶干涉图是独特的，其黑十字臂未达中心，形成中空的图案，俗称牛眼干涉图。中心部分通常为淡绿色或淡粉色。
Crystals are wonderful rock formations that have shocked people for A huge number of decades. They can be employed for quite a few various things, not only for decoration. Many 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 Particular Houses and harmonic capabilities of crystals to help make very precise measurements and adjustments.
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。
Significant crystals of diamond are precious gemstones. The crystal has other fascinating Homes; it's the best sound velocity of any good and is the best conductor of heat. Other than diamond, the other widespread sort of carbon is graphite, which is a layered materials. Each carbon atom has three coplanar close to neighbours, forming an arrangement known as the honeycomb lattice. A few-dimensional graphite crystals are acquired by stacking comparable levels.
C2 [ U ] clear glass of incredibly good quality, normally with its surface cut into delicate patterns:
当二氧化硅结晶完美时就是水晶；结晶不完美的就是石英：二氧化硅胶化脱水后就是玛瑙；二氧化硅含水的胶体凝固后就成为蛋白石；二氧化硅晶粒小于几微米时，就组成玉髓、燧石、次生石英岩。
水晶原石观赏石，从字面意义理解：观赏水晶石的原貌，即经过抛光去皮后的包裹体水晶和原色水晶，不需雕刻不求象形就具有非常高的观赏价值和收藏价值。此类水晶观赏石对质地要求非常之高，水晶晶体通透干净，颜色艳丽，意境鲜明深刻的价值就高，它的价值特点就好比钻石，实实在在石头本身的价值。
市场上有很多人把熔炼水晶也叫做合成水晶，那是不准确的，一般都是以水晶废料为原料在高温高压下熔炼出来的，而不是结晶成的，不具备水晶的晶体特性，所以不能把熔炼水晶与合成水晶混为一谈；但是熔炼水晶耐高温，用优质二氧化硅熔炼成的熔炼水晶可以做成实用产品比如水晶杯、烤盘、茶具等，实际上一代伟人毛泽东主席的水晶棺就是选用东海优质水晶熔炼而成的。
Among the binary crystals, the best buildings to visualise are those with equivalent quantities of the two different types of atoms. The structure of sodium chloride is based with a cube. To build the lattice, the sodium and chlorine atoms are placed on alternate corners of the cube, and the composition is recurring (Figure 3B).
crystal The newly crystallized quartz grains are characterized by elongate crystals oriented oblique to the shear band margins, defining a standard grain-form foliation. 来自 Cambridge English Corpus We say the chain topology while in the substantial w location acts because the proverbial ' scratch-on-theglass ' essential in the organic chemistry laboratory to generate crystals. 来自 Cambridge English Corpus The age scatter amid the person crystals might mirror incorporation of xenocrysts from before magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene varieties neutral to pale brown, subhedral to anhedral crystals, at times containing inclusions of plagioclase microlaths and opaque phases.
. The second layer is shaded inside the figure. It click here has exactly the same plane-triangular construction; the atoms sit in the holes shaped by the 1st layer. The first layer has two equivalent sets of holes, although the atoms of the 2nd layer can occupy only one established. The 3rd layer, labeled C
Fig. 1: Schematic of crystal development from setting up blocks composed of a particle core along with a shell of DNA ligands attached on the particle floor.
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。
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。