Crystal Fundamentals Explained
Crystal Fundamentals Explained
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8Where can we get this magic wand and crystal ball?我们到哪里获得这种魔棒和水晶玻璃球?
⒉棉、云雾或渣状包裹体、杂质在透明水晶内部有雾蒙蒙的现象或是感觉里面像有棉絮状、渣状物质一样的包裹体,这些包裹体的存在,影响水晶的整体美观。还有的水晶内局部含有黑斑或其他颜色的斑状物质,与水晶整体不协调,被视为水晶的杂质,有这种杂质的水晶是次品。
一般而言,紫晶和黄晶是水晶中价值较高的品种。两者进一步的分级是据其颜色的深浅,颜色较深的为A级,稍浅的为B级。一般颜色较深的价格高,但要以不深暗为标准。颜色包括两种,一种是水晶本身的颜色,另一种是内部包裹体的颜色。水晶本身的颜色要艳丽、纯正,分布要均匀,不能太深或太浅,如澳州玉、蓝玉髓、紫晶、黄水晶,其价格就高。无色的水晶内含包裹体的颜色艳丽,其价格也高,如钛晶、绿幽灵、红兔毛。紫水晶一般以稍有云状物、颜色深紫、晶体通透的为上品。
Fig. 3: A library of lattice symmetries might be accessed by shifting the particle Main and DNA shell.
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。
Lattices could possibly have one lattice place per cell or more than one, yielding a complete of fourteen Bravais crystal lattice kinds. Bravais lattices, named for physicist and crystallographer Auguste Bravais, describe the three-dimensional array created by a list of discrete factors.
30Three times went earlier, and I used to be surprised to view it again: all the openings have been sewed up by thin and white thread they usually looked such as ice crystal on Wintertime's branches inside the north.
Hexagonal �?Characterized by 4 axes, three of which might be equivalent in length and intersect at 120 levels, having a fourth axis perpendicular to the opposite three.
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。
say cheese something which somebody who is using a photograph of you lets you know to mention so that the mouth would make The form of a smile
In the Cambridge English Corpus We say the chain topology during the significant w area functions as the proverbial ' scratch-on-theglass ' essential within the organic chemistry laboratory to help make crystals. Through the Cambridge English Corpus Continual-tension and temperature molecular-dynamics simulations of crystals with the lecithin fragments - glycerylphosphorylcholine and dilauroylglycerol. From your Cambridge English Corpus Along with these, dust particles happen to be observed in small-temperature plasmas, like those Utilized in plasma processing and plasma crystals. In the Cambridge English Corpus The final Component of the e-book focuses on peculiarities of strongly coupled dusty plasmas, like the read more formation of dust crystals and involved interesting forces. From your Cambridge English Corpus Complete characterization of damage threshold in titanium doped sapphire crystals with nanosecond, picosecond, and femtosecond laser pulses. Through the Cambridge English Corpus Unbroken crystals are euhedral; rounded, or even more irregular, Key morphologies weren't observed. From the Cambridge English Corpus See all samples of crystal These illustrations are from corpora and from sources online. Any viewpoints while in the illustrations don't represent the impression with the Cambridge Dictionary editors or of Cambridge College Press or its licensors.
Molecular Crystals: Whole molecules are bonded to each other in an organized manner. A very good illustration is often a sugar crystal, which includes sucrose molecules.
压电性:水晶晶体受到压力时会产生电荷;反之,受到电压作用时,晶体会产生频率很高的振动。水晶具有可使压力与电荷相互转移的性能,称压电性。
矿物成分:针铁矿、赤铁矿、金红石、磁铁矿、电气石、石榴石、云母、绿泥石等形成了包裹体水晶,如发晶、钛晶、绿幽灵等,发晶中则含有肉眼可见的似头发状的针状矿物的包裹体形成。含锰和铁者称紫水晶;含铁�?;呈金黄色或柠檬�?)称黄水晶;含锰和钛呈玫瑰色者称蔷薇石英,即粉水晶;烟色者称烟水晶;褐色者称茶晶;黑色透明者称为墨晶。