Deutsch-Chinesische Enzyklopädie, 德汉百科

       
German — Chinese
Catalog Energy resource

Aluar Aluminio Argentino S.A.I.C.
This image, video or audio may be copyrighted. It is used for educational purposes only. If you find it, please notify us byand we will remove it immediately.
中国铝业公司
http://www.net4info.eu/albums/albums/userpics/10003/Zhong20Guo20Lu20Ye20Gong20Si20.jpg
This image, video or audio may be copyrighted. It is used for educational purposes only. If you find it, please notify us byand we will remove it immediately.
美洲LNG及天然气峰会和展览

This image, video or audio may be copyrighted. It is used for educational purposes only. If you find it, please notify us byand we will remove it immediately.
紫水晶
http://www.net4info.de/photos/cpg/albums/userpics/10001/amethyst.jpg
 
紫水晶的成分是二氧化硅,硬度7 ,比重2.65,折射率1.54-1.55,具二向色性。从不同角度观赏,可显示出蓝或红的紫色调,通常以混合式或阶式做成刻面。天然产出的紫水晶因含、锰等矿物质而形成漂亮的紫色,主要颜色有淡紫色、紫红、深红、大红、深紫、蓝紫等颜色,以深紫红和大红为最佳,过于淡的紫色则较为平常。天然紫晶通常会有天然冰裂纹或白色云雾杂质。具有宝石价值的紫晶均产在火山岩伟晶岩、或灰岩、页岩晶洞中。紫晶在自然界分布广泛,主要产地有巴西、俄罗斯、南非马达加斯加。全球最大最完美无瑕的一颗刻面紫水晶,尺寸:71.5mm×58.5mm×46.3mm,切割成刻面大水滴形状。重量1030克拉,产地斯里兰卡,深紫色带粉色调,颜色饱和浓艳。切割打磨比例标准,内部极为纯净。这颗宝石是目前为止全世界最大最完美的刻面紫水晶,也是世间罕见水晶精品中的精品。 
中文名
紫水晶
外文名
amethyst
别    称
紫水玉、紫水精、紫水碧、
类    别
二氧化硅
化学式
SiO2
颜    色
紫红、深紫、蓝紫、深红等
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
固体
矿物密度
2.56-2.66
比    重
2.65
分    布
米纳斯和吉拉斯、马达加斯加、阿肯色州、俄罗斯的乌拉尔、缅甸等
This image, video or audio may be copyrighted. It is used for educational purposes only. If you find it, please notify us byand we will remove it immediately.
阿纳达科石油
 
 
 
/assets/contentimages/AnadarkoPetroleumCorporation.jpg
 
 
 
 
This image, video or audio may be copyrighted. It is used for educational purposes only. If you find it, please notify us byand we will remove it immediately.
安达索太阳能发电站
Andasol ist ein Komplex aus drei solarthermischen Kraftwerken in der spanischen Provinz Granada, dessen Höchstleistung etwa 3×50 bzw. 150 Megawatt (MW) beträgt. Im Jahresmittel werden jedoch nur 3×20 bzw. gesamt 60 MW (brutto) gesamt erreicht. Die Kraftwerke wurden von dem 2011 in Konkurs gegangenen Erlanger Unternehmen Solar Millennium initiiert und entwickelt.
This image, video or audio may be copyrighted. It is used for educational purposes only. If you find it, please notify us byand we will remove it immediately.
Andeavor石油

 

This image, video or audio may be copyrighted. It is used for educational purposes only. If you find it, please notify us byand we will remove it immediately.
英美资源集团
1917
 
 
http://www.net4info.eu/albums/albums/userpics/10003/Anglo_American.jpg
 
 
This image, video or audio may be copyrighted. It is used for educational purposes only. If you find it, please notify us byand we will remove it immediately.
安薩爾多能源集團 安萨尔多能源集团
1853

http://www.net4info.de/photos/cpg/albums/userpics/10002/Ansaldo_Energia~0.jpg
This image, video or audio may be copyrighted. It is used for educational purposes only. If you find it, please notify us byand we will remove it immediately.
鞍山钢铁集团
https://www.net4info.de/photos/cpg/albums/userpics/10001/An20Gang20Ji20Tuan20.jpg
This image, video or audio may be copyrighted. It is used for educational purposes only. If you find it, please notify us byand we will remove it immediately.
无烟煤
http://www.net4info.de/photos/cpg/albums/userpics/10001/Anthrazitkohle.jpg
This image, video or audio may be copyrighted. It is used for educational purposes only. If you find it, please notify us byand we will remove it immediately.
This image, video or audio may be copyrighted. It is used for educational purposes only. If you find it, please notify us byand we will remove it immediately.