Deutsch-Chinesische Enzyklopädie, 德汉百科

       
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蒂芙尼
1837

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虎眼石
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虎眼石(Tiger's eye)又称虎睛石,是一种具有猫眼效果的宝石,多呈黄棕色,宝石内带有仿丝质的光纹。
虎眼石是石英的其中一个品种,这种宝石可以利用青石棉纤维硅制作进行假晶替代。硅化的未完成过程所产生的蓝色变异种,则称为“鹰眼石”。一般为黑黄相间的色调,像老虎的纹路,也有蓝黄黑相间的,称为蓝色猫眼石。秘键阵净化,猫眼石常被人们称为“高贵的宝石”。
它和变石一起属于世界五大珍贵高档宝石之一。猫眼石主要产于气成热液型矿床和伟晶岩岩脉中。虎眼石是木变石的变种。虎眼石的石英纤维较木变石短,而且方向不规整,像斑纹一样的任意方向排列。
世界上最大的虎眼石、木变石矿床位于南非德兰士瓦省。除此之外,还有巴西、中国河南等地出产。价格也视成色而定 ,一般表面无瑕疵,眼线清晰且位于正中的是上品。
中文名
虎眼石
外文名
tiger's-eye(tiger's-eye,hawk's-eye
别    称
虎睛石
类    别
宝石
化学式
SiO 2
颜    色
红,蓝,黄.
光    泽
猫眼效应
透明度
不透明至半透明
晶    系
多晶体复合质
解    理
断    口
玻璃至丝绢光泽
硬    度
7
脆    性
晶体惯态
晶质集合体,常呈纤维状结构
矿物密度
2.64g/cm 3 ~ 2.71g/cm 3
比    重
2.63
应    用
珠宝
分    布
中国、非洲、巴西
 
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天梭表
1853

 

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梅花表
1919
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TJX公司
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天貓 天猫
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黄玉
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黄玉,是含氟铝硅酸盐矿物,它是由火成岩在结晶过程中排出的蒸气形成的,一般产于流纹岩花岗岩的孔洞中。由于它经常与锡矿石伴生在一起,因此可作为寻找锡矿石的标志。黄玉一般呈柱状或不规则的粒状或块状,颜色有多种多样,一般为黄、蓝、绿、红、褐等浅色,有玻璃光泽,有的无色透明。黄玉的颜色在阳光长时间曝晒下会发生退色。黄玉可作为研磨材料,也可作仪表轴承。透明且漂亮的黄玉属于名贵的宝石。
中文名
黄玉
外文名
Topaz
密    度
3.49-3.57克/立方厘米
结    构
正交晶系
硬    度
8
矿物成分
含氟的铝硅酸盐
产    地
巴西、斯里兰卡、美国、中国
 
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1369
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