The smart Trick of Crystal That No One is Discussing
The smart Trick of Crystal That No One is Discussing
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天然的水晶一般都会有絮状(绵绺),也就是大家俗称的瑕疵,这是液体水落石出和二氧化碳的小孔穴,而人工合成的水晶就不会有这样的特征。
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。
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。
养殖晶:养殖晶是指,用天然水晶做种子,然后赋予天然水晶生长的高压条件,养殖器中有富含二氧化硅的分子。然后二氧化硅分子围绕天然水晶种生长,这样的水晶成分(分子式)与天然水晶是一摸一样的,唯一有差别的是,这样的水晶磁场作用没有天然水晶强。
25If you are a Billy Crystal fan, you'll like this film.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 could have one lattice point for every cell or multiple, yielding a total of fourteen Bravais crystal lattice kinds. Bravais lattices, named for physicist and crystallographer Auguste Bravais, describe the 3-dimensional array made by a set of discrete points.
Crystals appear exclusive from many other rocks and minerals, but �?barring a couple of special conditions �?nearly all minerals cover a crystalline framework underneath website the surface area.
Hexagonal �?Characterized by 4 axes, a few of that are equivalent in duration and intersect at a hundred and twenty levels, having a fourth axis perpendicular to another a few.
水晶包裹体丰富多彩,从气体、液体到各种矿物质,甚至宝石,均可被包含于水晶内,各种包裹体所形成的景象更是变化万千。按照包裹体的内容,常把包裹体水晶分为一下八类:
22Working from what The usa presently is aware of about itself, the bureau's professionals and also other demographers give an irresistible, if clouded, crystal ball among the their visions.
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。
There are actually other minerals and molecules which can kind these crystal lattices. Snowflakes certainly are a typical illustration of a around symmetric and geometrically patterned composition from ice crystals, and gemstones of all types are usually crystals.
玉石纹理如果能形成美丽的花纹、图案,其价格就高,如玛瑙内红白相间的色带有规律地排列,形成缠丝玛瑙时,碧玉中的不均匀颜色形成一种风景图案时,材料的价值将提高。当水晶内包裹体形成美丽的图案时,如幽灵水晶、风景水晶,或者针状包裹体呈束状排列时,其价值都高于普通的水晶。图案越美观、越有意境越好。
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。