The Greatest Guide To Crystal
The Greatest Guide To Crystal
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看颜色:即使在同一种类的水晶中,它的不同部位的纹理、色泽也各式各有千秋。属于单色的,要色度均匀;在同一块水晶上有深浅的,则要求其色调纹路美观大方。
无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度,越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏,就没有利用价值。
看做工:水晶制品加工过程分为两种,即磨工和雕工。如水晶项链、手链、耳环等属于研磨品;观音像、内画鼻烟壶等属于雕刻品。
水碧:《山海经》中,水晶又被称作水碧: �?又南三百里,日耿山,无草木,多水碧 �?,郭璞注�?�?亦水玉类 ”。这种称谓常被文人所引用,晋代郭景纯《璞江赋》道�?�?鬼,水碧�?�?。水晶又有人称它叫玉瑛。《符瑞图》载�?美石似玉,水精谓之玉瑛也�?”
In addition there are many products that resemble crystals but are literally polycrystals. Polycrystals form when microscopic crystals fuse alongside one another to form a good. These products will not include requested lattices.
They're going to finally come up with a great small uniform cluster of atoms, This is certainly the whole process of growing crystals. The more they will come together, the greater of a formation will be obvious towards the bare eye. Scientists can ascertain what mineral They can be checking out by how website the crystals type.
30Three days went past, and I had been surprised to check out it yet again: many of the openings have been sewed up by slim and white thread and they looked like the ice crystal on Wintertime's branches in the north.
26Some of the best ingesting Eyeglasses are constructed from lead crystal.一些最精致的酒杯是用铅晶质玻璃制成的。《柯林斯英汉双解大词典》
Among the many binary crystals, the easiest buildings to visualise are These with equal quantities of The 2 types of atoms. The composition of sodium chloride is based on the cube. To build the lattice, the sodium and chlorine atoms are put on alternate corners of the dice, as well as the framework is repeated (Figure 3B).
[ C/U ] clear glass of top quality, generally with its surface area Slice into patterns that replicate light
天然性是水晶观赏石的基本特性。通常整体造型水晶矿物不饰雕琢就具备很高的观赏价值,但是包裹体水晶观赏石经常需要适当打磨抛光,这样更方便观赏水晶内部的包裹体。
水晶形成后由于外力作用或某种人为原因使水晶产生大的裂隙或裂纹,这种裂纹有大有小,对水晶的影响也有大小之分。
在透明的水晶中,隐裂纹呈亮晶晶的片状,有时还会有晕彩效应。这些裂纹是水晶在生长过程中,遇到外力挤压而在内部产生的一些隐形裂纹,隐裂纹在芙蓉石、紫水晶、白水晶球及白水晶柱中都很常见。有的裂纹后来被物质填充,形成愈合的裂纹,也就是原来的裂纹又长住了。这种裂纹对水晶的影响相对要小一些。
水晶的价值根据品质、块体的大小、美感和产量多少的不同相差较大。遇到好的天然水晶要敢于下手,但好的水晶一般大家都想得到,值与不值,就要看经验了。由于天然水晶的开采和制作原因,没有瑕疵的水晶很难得到,纯净的饰品要达到与合成水晶媲美的品质,实在是很难得。另外,由于水晶的特性,在佩戴过程中,也会改变其等级,比如因为某种原因,有可能会逐渐产生较大裂纹。