The 5-Second Trick For Crystal

The 5-Second Trick For Crystal

Blog Article

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。

12He tried out all over again in numerous other towns and succeeded with Crystal Caramels.他又在其他几个城市再次尝试，并成功制出了水晶焦糖。

对水晶进行评价主要依据其颜色、透明度、大小、净度、特殊图案及是否有光学效应等方面。以颜色纯正，浓度较高，内部无瑕为好。种类上紫晶最贵，其次为黄晶、烟晶、无色水晶和芙蓉石。有特殊光学效应的水晶的价格更高。

Fig. 3: A library of lattice symmetries might be accessed by shifting the particle Main and DNA shell.

You will find many various crystals based on geometric constructions, crystal expansion, and materials. There may be preparations of hexagonal carbon atoms or amethyst that makes hexagonal pyramid buildings.

当二氧化硅结晶完美时就是水晶；结晶不完美的就是石英：二氧化硅胶化脱水后就是玛瑙；二氧化硅含水的胶体凝固后就成为蛋白石；二氧化硅晶粒小于几微米时，就组成玉髓、燧石、次生石英岩。

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 space.一盏水晶吊灯照亮了房间。《柯林斯英汉双解大词典》

13Nearly all desktops include a quartz-crystal clock to regulate their Procedure.几乎所有的计算机都有一个石英晶体时钟来调节它们的运行。

Crystals with apparent flat faces are termed euhedral crystals, while These lacking described faces are termed anhedral crystals. Crystals consisting of requested arrays of atoms that aren't often read more periodic are called quasicrystals.

Single crystals of metals are gentle and malleable, although polycrystalline metals are tougher and much better and tend to be more useful industrially. Most polycrystalline resources may be built into large one crystals following prolonged warmth cure. Up to now blacksmiths would warmth a bit of metallic to really make it malleable: warmth can make a couple of grains mature significant by incorporating more compact types. The smiths would bend the softened metal into condition after which pound it awhile; the pounding would ensure it is polycrystalline again, increasing its toughness.

Crystal Lattices You can find seven systems of crystal constructions, that are also called lattices or Room lattices:

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。