Not known Details About Crystal

诗中“胜美玉”,“过冰清”,写出水晶的质地美,而“亦欲应时明”则描绘出水晶充满灵性的动态美,耐人寻味。罗维是有独特眼光,懂得水晶真谛,第一个称赞水晶超过美玉的伟大诗人。他的认识已被千年之后的科学理论所证实;以水晶为直接吟咏对象的诗篇还有:

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Chemical Bonds The types of chemical bonds shaped in between atoms or groups of atoms in crystals rely upon their dimension and electronegativity. You will find 4 categories of crystals as grouped by their bonding:

Fig. seven: A template-directed solution can Handle The location of constructing blocks with a floor from the development of advanced buildings.

There's also many resources that resemble crystals but are actually polycrystals. Polycrystals type when microscopic crystals fuse collectively to variety a stable. These supplies will not encompass requested lattices.

Not all crystals sort in drinking water, but almost all crystals kind a similar way, atoms come collectively and become a uniformed cluster. The method might take as tiny as a couple of days to probably a thousand a long time. Organic crystals that come from the Earth variety the identical way.

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:

1A crystal chandelier lit the area.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》

Crystals tend to be viewed as one thing of huge magnificence, and they are commonly made use of with diamonds or other stones to help make items of jewelry. The majority of crystals now are person-manufactured in laboratories.

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。

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。

The C60 molecules, also called buckyballs, are very robust and Practically incompressible. Crystals are fashioned such the balls are organized in an fcc lattice having a a single-nanometre spacing concerning the centres of adjacent balls. The related C70 molecule has The form of the rugby ball; C70 molecules also type an fcc crystal when stacked with each click here other. The stable fullerenes sort molecular crystals, with weak binding—furnished by van der Waals interactions—concerning the molecules.

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