quartz

• Rock faces commonly show a stockwork of intersecting quartz and carbonate veins .
  岩石的外表呈现交织的石英及碳酸盐细脉组成的网格构造。
• Clay coats can be particularly important as inhibitors of later quartz cementation .
  粘土包壳作为石英晚期胶结作用的抑制剂可能是特别重要的。
• Locally dolomite and anhydrite are important as cements, together with minor authigenic quartz .
  在局部地方白云石和硬石膏也是重要的胶结物；还有少量自生石英。
• These clocks depend on electricity and the vibrations of the atoms of a quartz crystal, and are very complicated .
  这些钟靠电和石英晶体的原子振荡走时，是十分复杂的。
• Upon cooling, the thermal mismatch between residual silicon and quartz usually results in the fracture of the crucible .
  当冷却时，残余的硅和石英间的热失配往往导致坩埚破裂。
• With rare exceptions such as a pure quartz sandstone, every rock contains detectable amounts of abundant metals .
  除了象纯石英砂岩等少数例外，每种岩石都含有若干可检出的富有金属。
• At first glance, calcite might be confused with quartz where both are clear, colorless, and "glassy" .
  乍一看来，方解石可能与石英相混淆，因为两者都是透明、无色、且“呈玻璃状”的。
• the source is which is placed along with the polished substrate in an evacuated, sealed quartz ampoule.
  扩散源与抛光衬底一起置放在抽真空密封的石英管内。
• Test method for optical grade synthetic quartz crystal
  人造光学石英晶体试验方法
• Swiss made eta quartz , stainless steel watch case
  采用瑞士石英机芯,不锈钢表身br