英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Scheelite - Wikipedia
    Scheelite is originally named after Swedish chemist Carl Wilhelm Scheele (1742–1786) Well-formed crystals are sought by collectors and are occasionally fashioned into gemstones when suitably free of flaws
  • Scheelite: Mineral information, data and localities.
    Powellite-Scheelite Series A primary mineral commonly found as a component of contact-metamorphic tactite; in high-temperature hydrothermal veins and
  • Scheelite | Properties, Formation, Occurrence - Minerals
    Scheelite is a calcium tungstate mineral that is commonly found in various geological environments It is an important ore of tungsten, which is a metal known for its high melting point, density, and strength
  • Scheelite | Tungsten, Ore, Mining | Britannica
    Scheelite, calcium tungstate mineral, CaWO4, that is an important ore of tungsten It acquired commercial value in the 20th century when tungsten became used in alloy steels and electric-light filaments
  • Scheelite Value, Price, and Jewelry Information - Gem Society
    Everything you ever wanted to know about scheelite Find value guidelines, scientific data, expert comments, and more in our Gem Listings
  • Scheelite: The mineral scheelite information and pictures
    Scheelite is an important ore mineral, and is well-known among collectors for its distinctly colored crystals associated with brilliant fluorescence It forms a series with the rarer mineral Powellite, which contains molybdenum in place of the tungsten
  • Scheelite Mineral Data
    Name Pronunciation: Scheelite + Pronunciation Synonym: Calcium Tungstate Cuproscheelite - mixture of scheelite + copper tungstate ICSD 60547 PDF 41-1431 Scheelite Image Images: Scheelite Comments: Orange scheelite with white mica Location: Pingwu, Sichuan, China Scale: 9 5 x 9 cm © Fabre Minerals Scheelite Crystallography Axial Ratios: a:c
  • Scheelite – Mineral Properties, Photos and Occurrence
    Scheelite is a calcium tungstate mineral that is the dominant member of a solid solution series between tungsten-rich scheelite (CaWO 4) and rare molybdenum-rich powellite (CaMoO 4), a much less common variant
  • Scheelite CaWO4 - Handbook of Mineralogy
    Scheelite CaWO4 c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Tetragonal Point Group: 4 m Crystals are typically pseudo-octahedral {011} or {112}, with modifying forms {001}, {013}, {121}, several others, to 32 cm; commonly granular, massive Twinning: {110}, common, penetration and contact twins, composition plane {110} or {001}
  • Scheelite - an overview | ScienceDirect Topics
    Scheelite is defined as the mineral CaWO₄, serving as a representative member of a family of minerals isostructural to it, characterized by tetragonal symmetry and often appearing as dipyramidal pseudo-octahedra





中文字典-英文字典  2005-2009