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。
按照透明度指标，水晶越透明，价格越高，好的透明的水晶加工出的成品晶莹剔透、光辉耀眼。透明度高的水晶能提升颜色的艳丽，否则显得呆板无灵性。光学水晶要求全透明、无双晶、无杂质。工艺水晶要求透明、少裂、少瑕疵。熔炼水晶要求透明，可有较多裂纹。三者价值依次降低，熔炼水晶只能作为熔炼水晶玻璃的原料。在工艺水晶中，晶体较大的，可用来做水晶眼镜和雕刻高档工艺品，因而价格较高。
4Without a crystal ball, it's not possible to state the place we'll be upcoming year.不用水晶球预卜未来，我们说不准明年处境如何呀。《牛津词典》
Massive crystals of diamond are important gemstones. The crystal has other fascinating Qualities; it's the very best sound velocity of any strong and is the greatest conductor of warmth. Besides diamond, the other widespread kind of carbon is graphite, which happens to be a layered materials. Every single carbon atom has a few coplanar in the vicinity of neighbours, forming an arrangement called the honeycomb lattice. A few-dimensional graphite crystals are received by stacking identical levels.
. These four structures comprise a lot of the binary crystals with equal quantities of cations and anions.
Not all crystals sort in h2o, but nearly all crystals sort the same way, atoms arrive with each other and become a uniformed cluster. The method can take as minimal as a few days to perhaps a thousand years. Pure crystals that originate from the Earth form a similar way.
对任何宝石来说，颜色都是非常重要的，水晶也不例外。如果是水晶晶体是有颜色的，如粉水晶、黄水晶、紫水晶等，其颜色评价的最高标准则是明艳动人，不带有灰色、黑色、褐色等其他色调。如粉水晶，颜色以粉红为佳；紫水晶，要求颜色为鲜紫，纯净不发黑；黄水晶，要求颜色不含绿色、柠檬色调，以金橘色为佳。对于发晶来说，晶体的颜色也是很重要的。相同发丝的金发晶，晶体完全无色（白水晶）和晶体略偏茶色，肉眼的视觉观感也是有差别的，所以前者的价格会高于后者。
1A crystal chandelier lit the space.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》
水晶是有成色等级之分，影响水晶价位的因素很多，不像钻石以4C就可以判定，所以大家要多听多看多比较才能真正辨别出来。一般的标准是水晶石越大越好，越透越好，颜色越娇嫩越好，形状越典型越好。不过最重要还是自己喜欢，而选购时辨识真伪的方法大致有下列几种：
英语-中文（简体） term #beta Beta /beta #preferredDictionaries ^selected title /selected /preferredDictionaries
Look through cryptosporidiosis cryptosporidium cryptozoologist cryptozoology crystal crystal ball crystal crystal clear idiom crystal lattice BETA copyright #randomImageQuizHook.filename #randomImageQuizHook.isQuiz Take a look at your vocabulary with our exciting impression quizzes
正常的水晶在生长时，多可以发现和柱形尖端棱线平行的生长纹（expansion traces）。由于在地底、岩洞中的生长空间多狭窄，尤其在遇到地震时，或地壳变动时，甚至容易遭到其他矿石的挤压，常常会压迫产生不同的「晶面」。还有，当水晶还是在液态状的时候，常常也会包覆着其他的矿石、泥灰一起结晶成长，如金红石（稍后变成发晶）、火山泥灰（稍后变成幻影水晶）等等。所有的这些，都是「自然的一部分」，请不要视为「瑕疵」。
This Assessment chronicles above 20 years of investigate into creating a genetic code for crystal engineering. Rather than directing Organic processes, this code takes advantage of synthetic varieties of DNA to programme the assembly of nanoparticles and microparticles into 1D, 2D and 3D crystalline architectures, in which almost just about every element of the resultant buildings is usually systematically controlled. In this conceptual framework, get more info the structural and functional developments are explained in an effort to outline the current amount of sophistication and to forecast long run Instructions of the System.
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。