Deutsch-Chinesische Enzyklopädie, 德汉百科

       
German — Chinese
Catalog Life and Style

北京表
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柏莱士
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贝达弗
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宾舍曼
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貝納通 贝纳通

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水晶/Quarz
http://www.net4info.de/photos/cpg/albums/userpics/10001/Bergkristall.jpg
水晶(rock crystal)是稀有矿物,宝石的一种,石英结晶体,在矿物学上属于石英族。主要化学成份是二氧化硅化学式为SiO2。纯净时形成无色透明的晶体。当含微量元素AlFe等时呈粉色、紫色黄色茶色等。经辐照微量元素形成不同类型的色心,产生不同的颜色,如紫色、黄色、茶色,粉色等。含伴生包裹体矿物的被称之为包裹体水晶,如发晶绿幽灵、红兔毛等,内包物为金红石电气石阳起石云母绿泥石等。
中文名
水晶
外文名
crystal,rock crystal
别    称
水玉、水精、水碧、石英
类    别
二氧化硅矿物
化学式
SiO2
分子量
60.084
颜    色
无色,浅至深的粉色、紫色,浅黄、中至深黄色等
光    泽
玻璃光泽,断口树脂光泽
透明度
半透明或透明
条    痕
无色
晶    系
三方晶系
解    理
无解理
断    口
贝壳状
硬    度
7
晶体惯态
常呈六棱柱状,是六方柱和菱面体的聚形
矿物密度
2.65克/立方厘米
比    重
2.22-2.65
分    布
鹿城水晶
折射率
NO=1.544,Ne=1.553
双折射率
0.009
色    散
0.013
熔    点
1713℃
拼    音
shuǐ jīng
注    音
ㄕㄨㄟˇ ;ㄐㄧㄥ
光    性
一轴晶正光性
特殊性质
压电性
作    者
词语
 
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成功时代广场

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琥珀
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琥珀是距今4500—9900万年前的松柏科植物的树脂滴落,掩埋在地下千万年,在压力和热力的作用下石化形成,故又被称为“琥珀”或“松脂化石”。
琥珀的形状多种多样,表面常保留着当初树脂流动时产生的纹路,内部经常可见气泡及古老昆虫、动物或植物碎屑。
常见琥珀种类:金珀,金蓝珀,绿茶珀,红茶珀,血珀翳珀花珀、棕红珀,蓝珀,绿珀虫珀蜜蜡,珀根,缅甸根珀等。
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百思買 百思买
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