天然的水晶一般都会有絮状（绵绺），也就是大家俗称的瑕疵，这是液体水落石出和二氧化碳的小孔穴，而人工合成的水晶就不会有这样的特征。
12He attempted once again in many other towns and succeeded with Crystal Caramels.他又在其他几个城市再次尝试，并成功制出了水晶焦糖。
对水晶进行评价主要依据其颜色、透明度、大小、净度、特殊图案及是否有光学效应等方面。以颜色纯正，浓度较高，内部无瑕为好。种类上紫晶最贵，其次为黄晶、烟晶、无色水晶和芙蓉石。有特殊光学效应的水晶的价格更高。
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。
断口：贝壳状。断口也叫破口。它是指矿物被打击后产生不规则的破裂，破裂裂面凹凸不平称为断口。根据断口的形状可分为贝壳状和锯齿状。
⑧、雕刻：立体感强，工艺高，做工精细，成本高。分手工雕刻图形、机器雕刻文字。
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。
Ionic Crystals: Electrostatic forces form ionic bonds. A traditional example is a halite or salt crystal.
Crystals tend to be viewed as something of huge attractiveness, and so they are commonly applied with diamonds or other stones to make items of jewellery. Nearly all of crystals now are male-created in laboratories.
crystal The newly crystallized quartz grains are characterized by elongate crystals oriented oblique for the shear band margins, defining an average grain-condition foliation. 来自 Cambridge English Corpus We say the chain topology in the superior w area functions as being the proverbial ' scratch-on-theglass ' essential from the natural chemistry laboratory to generate crystals. 来自 Cambridge English Corpus The age scatter amid the person crystals may perhaps replicate incorporation of xenocrysts from earlier magmatic pulses or protoliths. 来自 Cambridge English Corpus The clinopyroxene sorts neutral to pale brown, subhedral to anhedral crystals, at times containing inclusions of plagioclase microlaths and opaque phases.
15The trick to a great thermoelectric product is really a crystal composition in which electrons can flow freely.制造一种好的热电材料的关键是，需要一种电子可以自由流动的晶体结构。
You will find only a few various device-cell styles, so numerous crystals share a Crystal single unit-mobile style. An essential characteristic of a device cell is the volume of atoms it is made up of. The entire amount of atoms in the whole crystal could be the amount in Each individual mobile multiplied by the volume of unit cells. Copper and aluminum (Al) each have one particular atom for each device mobile, whilst zinc (Zn) and sodium chloride have two. Most crystals have only a few atoms for each unit cell, but there are many exceptions. Crystals of polymers, such as, have Countless atoms in Every device mobile.
⑨、喷砂：立体感弱，较平整，无凹凸感，机器雕刻文字、图形等后进行效果处理。成本低制作快。
A further kind of crystalline carbon relies on a molecule with 60 carbon atoms called buckminsterfullerene (C60). The molecular form is spherical. Every carbon is bonded to a few neighbours, as in graphite, along with the spherical form is attained by a mix of twelve rings with 5 sides and 20 rings with 6 sides. Identical structures ended up first visualized by the American architect R. Buckminster Fuller for geodesic domes.