Top latest Five Crystal Urban news
Top latest Five Crystal Urban news
Blog Article
轴性、光性：一轴晶正光性。正交偏光下所看到的一轴晶干涉图是独特的，其黑十字臂未达中心，形成中空的图案，俗称牛眼干涉图。中心部分通常为淡绿色或淡粉色。
杂质、裂纹越少越好。质地好的水晶制品，应看不到星点状、云雾状和絮状分布的气液包裹体或组成玉石的颗粒。有裂纹、斑点，则属于次品。
4Without a crystal ball, it's unattainable to mention wherever we'll be subsequent year.不用水晶球预卜未来，我们说不准明年处境如何呀。《牛津词典》
③次生包裹体：指主体水晶形成后，由于环境的变化使得主晶周围的一些物质沿裂隙进入到其内部而形成的包裹体。形成的原因有出熔作用、裂隙的结晶化、以及放射性元素破坏的作用等。水晶典型的次生包裹体有胶花水晶中的氧化铁充填物等。
How Crystals Kind The whole process of forming a crystal is known as crystallization. Crystallization usually happens every time a good crystal grows from the liquid or Resolution.
Monoclinic �?Characterised by three unequal axes, two of which intersect at an oblique angle, while the 3rd is perpendicular towards the aircraft of another two.
30Three times went previous, and I had been shocked to check out it yet again: each of the openings were being sewed up by thin and white thread they usually appeared like the ice crystal on Wintertime's branches within the north.
市场上有很多人把熔炼水晶也叫做合成水晶，那是不准确的，一般都是以水晶废料为原料在高温高压下熔炼出来的，而不是结晶成的，不具备水晶的晶体特性，所以不能把熔炼水晶与合成水晶混为一谈；但是熔炼水晶耐高温，用优质二氧化硅熔炼成的熔炼水晶可以做成实用产品比如水晶杯、烤盘、茶具等，实际上一代伟人毛泽东主席的水晶棺就是选用东海优质水晶熔炼而成的。
水晶是有成色等级之分，影响水晶价位的因素很多，不像钻石以4C就可以判定，所以大家要多听多看多比较才能真正辨别出来。一般的标准是水晶石越大越好，越透越好，颜色越娇嫩越好，形状越典型越好。不过最重要还是自己喜欢，而选购时辨识真伪的方法大致有下列几种：
看文化：水晶里面的包裹体象形，能与文化、宗教及历史有所牵连的话，价格往往会比水晶本身的价值高出几倍甚至几百倍。
16I opened the box and saw a piece of crystal snowflake along with a greeting card with "Joyful Birthday" from the blank paper.我打开盒子并看见在白纸中有一片水晶雪花和一张写着“生日快乐”的贺卡。
The sodium chloride crystal lattice is characterized by the shut packing in the good sodium ions and negative chloride ions. Each sodium ion is surrounded by 6 chloride ions, and each chloride ion is surrounded by 6 sodium ions, making a hugely secure and symmetrical structure.
The structure of the sodium atoms alone, or the chlorine atoms alone, is fcc and defines the device mobile. The sodium chloride composition Therefore is produced up of two interpenetrating fcc lattices. The cesium chloride lattice (Determine 3A) here is predicated on the bcc framework; each and every other atom is cesium or chlorine. In this instance, the device cell is a cube. The third vital framework for AB
Clever Vocabulary: associated phrases and phrases Geology: mineralogy beneficiation crystalline deposit gemologist gemology gold dust graphite idiomorphic intercrystalline like gold dust idiom magnesium mineral nugget pyrite quasicrystal seam silicon unmined vermiculite vulcanicity See a lot more final results » You can also obtain linked text, phrases, and synonyms while in the subjects: