17These rings are indicative with the crystal construction of nickel and can be defined only by invoking wavelike Homes of sunshine.这些光圈表明了了镍的晶体结构，而且只能通过光线中波的特征来解释。
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晶及其石英岩类玉石是中低档宝玉石，虽比不上钻石、红蓝宝石的高贵，但在加工中如果构思巧妙而且加工精细，同样具有很高的价值。如中国传统的玛瑙“虾盘”、“龙盘”、“水漫金山�?水胆玛瑙摆件)都被誉为国家级宝玉石。
If you need to see how crystals are shaped, you may do a little job in your pretty very own kitchen area and find out the development in the crystals arise together with your very own eyes . This may be performed by putting a small quantity of table salt into some normal tap drinking water, wait around 24 hours, and you may see awesome cubed formations. This takes place as the water is evaporating, which triggers the atoms that make up the salt (the mineral) and the h2o to come closer together.
C2 [ U ] clear glass of pretty top quality, generally with its surface Slash into sensitive designs:
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。
30Three days went earlier, and I was surprised to check out it once again: all the openings more info ended up sewed up by thin and white thread and so they looked just like the ice crystal on winter's branches during the north.
The elements are identified in a variety of crystal packing arrangements. The most common lattice buildings for metals are Those people attained by stacking the atomic spheres into one of the most compact arrangement.
Crystals tend to be considered as some thing of enormous elegance, they usually are generally utilised with diamonds or other stones for making items of jewelry. Nearly all of crystals now are guy-made in laboratories.
⑤化学稳定�?非常好，在常温下仅溶解于氢氟酸，不溶解于其它各类酸、碱。在高温高压条件下可溶解于碳酸钠溶液中。
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。
You can find other minerals and molecules which will sort these crystal lattices. Snowflakes really are a basic illustration of a around symmetric and geometrically patterned structure from ice crystals, and gemstones of all varieties are generally crystals.
水晶饰品越来越受到人们的喜爱。中国、日本、韩国、美国等国家的人们还对水晶球情有独钟，喜欢将它们摆在家里或办公室里，认为水晶球有灵性，能保平安，带来财运。不过天然水晶不像看起来那么晶莹剔透，它也有瑕疵，我们在选购饰品的时候要注意。此外，我们还要掌握水晶的评价依据、选购方法，这样可以帮助我们在琳琅满目的水晶饰品中选到心仪的水晶。
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。