Crystal Fundamentals Explained
Crystal Fundamentals Explained
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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。
杂质、裂纹越少越好。质地好的水晶制品,应看不到星点状、云雾状和絮状分布的气液包裹体或组成玉石的颗粒。有裂纹、斑点,则属于次品。
10This could be the silicon chip—somewhat chip of silicon crystal.这是硅芯片——一个硅晶体的小芯片。
Large crystals of diamond are precious gemstones. The crystal has other intriguing Qualities; it's the very best audio velocity of any good and is the best conductor of heat. Apart from diamond, the opposite widespread kind of carbon is graphite, and that is a layered product. Every single carbon atom has 3 coplanar around neighbours, forming an arrangement called the honeycomb lattice. 3-dimensional graphite crystals are obtained by stacking identical levels.
水胆水晶,包括气态,液态,固态,有时候可以同时多态并存,无色居多,个别情况下可见红色,绿色,黄色,蓝色,黑色等。
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。
时尚的收藏爱好者喜欢收藏天然水晶,却常常因为在市场上面对大量的合成水晶看走了眼。市面上的水晶:
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。
仿制钛晶树水晶:钛晶是水晶里价格最昂贵的,造假者当然也不会放过这么好的产品。天然的环境下,在水晶里能生长个像树一样的钛晶,完全是可能的,只是这样的货很少,那我们的造假专家是如何做的呢,白水晶底下打个洞,激光打点成板状的钛晶进去,就这样这块水晶的身价就能飙升几十倍。往往有的钛晶戒面,会采用将钛晶部位割成板状,与圆面的水晶粘合的方法来制作。
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With the Cambridge English Corpus We are saying the chain topology in the higher w area acts as the proverbial ' scratch-on-theglass ' essential while in the natural chemistry laboratory for making crystals. From the Cambridge English Corpus Regular-stress and temperature molecular-dynamics simulations of crystals from the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. From the Cambridge English Corpus As well as these, dust particles are already observed in reduced-temperature plasmas, like Individuals Utilized in plasma processing and plasma crystals. In the Cambridge English Corpus The final Element of the e-book concentrates on peculiarities of strongly coupled dusty plasmas, such as the development of dust crystals and involved desirable forces. In the Cambridge English read more Corpus Finish characterization of harm threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. Within the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or more irregular, Key morphologies were not observed. From the Cambridge English Corpus See all samples of crystal These examples are from corpora and from resources online. Any thoughts during the illustrations don't symbolize the view of the Cambridge Dictionary editors or of Cambridge University Push or its licensors.
Molecular Crystals: Overall molecules are bonded to each other in an organized manner. A fantastic illustration is usually a sugar crystal, which has sucrose molecules.
玉石纹理如果能形成美丽的花纹、图案,其价格就高,如玛瑙内红白相间的色带有规律地排列,形成缠丝玛瑙时,碧玉中的不均匀颜色形成一种风景图案时,材料的价值将提高。当水晶内包裹体形成美丽的图案时,如幽灵水晶、风景水晶,或者针状包裹体呈束状排列时,其价值都高于普通的水晶。图案越美观、越有意境越好。
Yet another kind of crystalline carbon is based with a molecule with 60 carbon atoms known as buckminsterfullerene (C60). The molecular shape is spherical. Just about every carbon is bonded to three neighbours, as in graphite, as well as the spherical shape is accomplished by a mix of 12 rings with five sides and twenty rings with six sides. Identical structures ended up 1st visualized with the American architect R. Buckminster Fuller for geodesic domes.