Not all crystals are equally crystalline. There will often be impurities, plus the ionic & covalent involving molecules can produce vastly unique buildings out of the same product. An excellent illustration of this are diamonds and graphene.
无色水晶以晶莹美丽、洁净透明着称。衡量无色水晶主要看它的纯度,越纯、越透明越好。干净的、无瑕疵的、杂质少的价值就高。无色的水晶如果很脏,就没有利用价值。
景观水晶,就是包裹体组成各种造型特异的水晶,有的似山水,有的似人物,有些像文字,有些像动物,植物,器物等等。
Fig. seven: A template-directed method can Handle the placement of setting up blocks with a surface in the development of intricate structures.
25If you're a Billy Crystal admirer, you can expect to appreciate this movie.如果你是比利·克里斯特尔的影迷,你就会喜欢这部电影。《柯林斯英汉双解大词典》
Lattices might have one lattice issue per mobile or multiple, yielding a complete of fourteen Bravais crystal lattice forms. Bravais lattices, named for physicist and crystallographer Auguste Bravais, describe the 3-dimensional array produced by a list of discrete points.
解理:无解理。所谓解理是指矿物被打击时,沿一定方向有规则地裂开形成光滑平面的性质。根据解理的程度可以分为五类:极完全解理、完全解理、中等解理、不完全解理和无解理,水晶属于无解理。
如果水晶内部杂质中有传说中人物的造型,如佛、星座、生肖等价值可能要高于同等颜色和净度的水晶。
第三种是“皮景”,因某些其他的矿物与水晶体共生,或由于其他的物质侵蚀而依附于水晶表面,或者是水晶受自然环境的影响,在水晶表面出现蚀象,形成了一些景象或图案,这种景观存在于水晶表面。
Crystals with noticeable flat faces are named euhedral crystals, although Those people missing defined faces are named anhedral crystals. Crystals consisting of purchased arrays of atoms that aren't generally periodic are known as quasicrystals.
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。
Crystallography could be the analyze of crystals, and it offers with all the things from ideal geometric shapes to seemingly random conglomerations of particles and click here minerals.
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水晶观赏石是天然水晶中最具代表的作品,具有其他宝石都不具备的观赏性。不论是玉石翡翠还是都要经过雕琢后次能体现他的价值,而水晶观赏石只需要将表面进行抛光,即展现出晶体内所包裹的物质,直接欣赏原汁原味的水晶石。