About Crystal

About Crystal

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27Local economists have appeared into their crystal balls and observed one thing relatively horrible.当地的经济学者们已预测到将会出现棘手的问题。《柯林斯英汉双解大词典》

Bismuth (Bi) appears to be a steel, but the quantity of electrons obtainable for electrical conduction is analogous to that of semiconductors. In reality, bismuth is named a semimetal. Molecular solids tend to be crystals shaped from molecules or polymers. They are often insulating, semiconducting, or metallic, according to the sort of molecules during the crystal. New molecules are repeatedly currently being synthesized, and many are created into crystals. The number of unique crystals is gigantic.

一般而言，紫晶和黄晶是水晶中价值较高的品种。两者进一步的分级是据其颜色的深浅，颜色较深的为A级，稍浅的为B级。一般颜色较深的价格高，但要以不深暗为标准。颜色包括两种，一种是水晶本身的颜色，另一种是内部包裹体的颜色。水晶本身的颜色要艳丽、纯正，分布要均匀，不能太深或太浅，如澳州玉、蓝玉髓、紫晶、黄水晶，其价格就高。无色的水晶内含包裹体的颜色艳丽，其价格也高，如钛晶、绿幽灵、红兔毛。紫水晶一般以稍有云状物、颜色深紫、晶体通透的为上品。

Fig. 7: A template-directed strategy can Handle The location of developing blocks with a surface area inside the development of complicated structures.

How Crystals Variety The entire process of forming a crystal is known as crystallization. Crystallization usually takes place whenever a solid crystal grows from a liquid or Alternative.

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。

水晶的评价标准和高端宝石有所不同。多数高端宝石把颜色放在评价的第一位，而对水晶来说，颜色和净度（水晶行业称作晶体）是近乎同等重要的因素：

Ionic Crystals: Electrostatic forces variety ionic click here bonds. A classic instance is a halite or salt crystal.

水晶常以晶簇、晶洞形式产出，其中水晶洞一般存在于由火山喷发而形成的巨厚熔岩流层的火成岩与玄武岩中。火山喷发时所含的气体或热水溶蚀等作用导致岩层中出现大量的孔隙，当富含硅质矿物的流体进入较薄的熔岩孔隙中，且温、压条件合适时将结晶沉淀出水晶等矿物。

幽灵水晶，分绿幽灵，红幽灵，白幽灵等，主要组成为绿泥石，其中绿幽灵属于珍贵品种。

⑥、丝印：水晶表面附有不同的色料进行效果处理，颜色层面较厚，着力后方可脱落。

Orthorhombic: They're rhombic prisms and dipyramids that resemble tetragons but with no square cross-sections.

水精：水晶为何称为水精，《广雅》有巧解：�?水之精灵�?”；李时珍则说：�?莹洁晶光，如水之精英 ”。细加考究，此称还蕴含浓厚的宗教意味呢。水精一名，最初见于佛书，后汉支曜翻译的《具光明定意经》说：�?其所行道，色如水�?�?。

⑥白色的包裹体有蚀变的绿泥石、云母、愈合裂隙、水晶、方解石、透闪石等。