水晶表面坑洼的地方，有的深，有的浅，这是水晶在成长过程中自然形成的，并非是人为造成的损伤。缺陷位置本来包有其他矿物晶体，由于包裹体和水晶结合部位的结合力不强，当表面抛光时，矿体脱落，留下空位。这种缺陷在绿幽灵、钛晶、金发晶上都比较常见。
Bismuth (Bi) seems to be a steel, but the volume of electrons readily available for electrical conduction is similar to that of semiconductors. In actual fact, bismuth is termed a semimetal. Molecular solids are often crystals fashioned from molecules or polymers. They are often insulating, semiconducting, or metallic, depending on the form of molecules during the crystal. New molecules are repeatedly becoming synthesized, and several are made into crystals. The number of distinctive crystals is enormous.
These innovations include things like unique buildings with programmable lattice symmetries and very well-defined crystal behaviors, responsive supplies that leverage the intrinsic Homes of nucleic acids to manipulate structures on need, nanoparticle superlattices grown epitaxially from surfaces and colloidal crystals which provide insights into gentle–matter interactions. Seeking ahead, we problem the Local community to leverage the incredible structural Command afforded by crystal engineering with DNA to synthesize classes of functional resources that push over and above what has become possible with In a natural way transpiring crystalline components or People produced by additional typical approaches.
Most stable products located in nature exist in polycrystalline kind rather than as a single crystal. They are actually made up of millions of grains (small crystals) website packed collectively to fill all space. Each unique grain has a unique orientation than its neighbours. While extended-vary purchase exists inside 1 grain, on the boundary concerning grains, the purchasing changes way. A standard piece of iron or copper (Cu) is polycrystalline.
C2 [ U ] transparent glass of extremely superior quality, normally with its surface area Slash into delicate patterns:
Monoclinic �?Characterized by a few unequal axes, two of which intersect at an oblique angle, although the third is perpendicular on the aircraft of the 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。
第三种是“皮景”，因某些其他的矿物与水晶体共生，或由于其他的物质侵蚀而依附于水晶表面，或者是水晶受自然环境的影响，在水晶表面出现蚀象，形成了一些景象或图案，这种景观存在于水晶表面。
广义的包裹体是指宝石内部含有的与主晶宝石化学成分、物理性质等不同的物质。
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。
The arrangement of the atom’s electrons establishes its chemical Homes. The Homes of solids are often predictable with the properties in their constituent atoms and molecules, and different shell structures of atoms are for that reason liable for the variety of solids.
《古今小说·李公子救蛇获称心》：“器皿皆是玻璃、水晶、琥珀、玛瑙为之，曲尽巧妙，非人间所有。”
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