矿物化学

The Geological Society of America dedicates to the advancement of the geosciences, including mineralogy, astrobiology, physiology, geobiology interface, biochemical cycling, geochemistry, planetary geology, engineering geology, coal geology, and archaeological geology so on.

美国地质协会致力于促进地球科学的发展，包括矿物学，太空生物学，物理学，地理物理学界面，生物化学循环，地球化学，行星地质学，工程地质学，煤的地质学，和考古地质学等。

Table salt is halite that has been purified by a chemical process that prevents the mineral from absorbing moisture.

食用盐是一个由化学过程净化了避免吸引湿气的矿物的岩盐。

From a chemical-mineralogical point of view, emeralds are beryllium-aluminium-silicates with a good hardness of 7_ to 8, and belong, like the light blue aquamarine , the tender pink morganite , the golden heliodor and the pale green beryl, to the large gemstone family of the beryls .

从一个化学制品矿物学观点，绿宝石是铍铝硅酸盐与好坚硬7 _ 到8，和属于，象light-blue aquamarine 嫩桃红色 morganite 金黄heliodor 和苍白绿色 beryl， beryls 的大gemstone 家庭。

High temperature performance of acid lining of the induction crucible furnace mainly depends on the physical and chemical properties and mineral composition of used refractory .

坩埚式感应炉酸性炉衬的高温性能，主要取决于所用耐火材料的物理、化学性能及矿物组成。

High temperature performance of acid lining of the induction crucible furnace mainly depends on the physical and chemical properties and mineral composition of refractory used.

坩埚式感应炉酸性炉衬的高温性能主要取决于所用耐火材料的物理、化学性能及矿物组成。

NASA's principal investigator for the rover mission, Steve Squyres, and his colleagues report in the journal Science that the sedimentary rocks analyzed by Opportunity contain sulfate salts and a mineral called jarosite - harsh chemicals that are also found in briny water here on Earth.

此次漫游者任务的主要航天局调查员 Steve Squyres 和他的同伴在《科学日志》上发表道，"机遇号"分析的水成岩物质含有硫酸盐的成分以及一种叫做黄钾铁矾的矿物，这种化学物质具有很强刺激性，在地球的咸海水中也有这种物质。

The characters of geochemistry are rich alkali. And at the same time the content of calcium is high. They are rich in alkali, high in Potassium, enriched in LILE, LREE and Pb, depleted in HFSE and have a small Sr, Nd, Pb isotope range. Their source is probably a kind of even metasomatic mantle. This is consistent with the fact that there is kimberlite containing flogopite in the deep-source enclosure of Cenozoic super-K alkali lava in the southern part of this rock zone.

组成这些钾质碱性岩带的岩石：在岩相上，包括深成相、浅成相和喷溢相等不同岩相；在岩性上，从超基性、基性、中性到酸性岩石；造岩矿物，从超基性到酸性岩石中均有透辉石，在基性、超基性岩中有霞石；在岩石化学成分上，所有岩石均表现出富碱高钾富钙，微量元素富集Rb、Sr、Ba等大离子亲石元素和Th、U等放射性元素，贫Nb、Ta、Zr、Hf等高场强元素；稀土元素富集轻稀土，铕负异常不明显；Sr、Nd、Pb同位素组成，显示了物质来源于富集地幔源区。

According to the description of their physical and chemical features in ancient documents, they are undoultedly two different minerals, that is, lead chromate should be As2S2 while arsenic disulfide should be PbCrO.

根据古文献中对石黄与雄黄的物理和化学特性的描述，它们无疑是两种不同的矿物，雄黄应是鸡冠石，即二硫化二砷(As2S2)，石黄应是属于铬合物的铬酸铅。

The findings indicate that there are many micro-crannies developed in marlite, which can be seen under the Scanning Electron Microscope. The micro-crannies are the precondition of karstification process. Also, the calcium carbonate is dissolved through some chemical processes, and lots of mineral mud are carried away by mechanic erosion. The karstification process results in not only mineral component transformation, but also the rock mass structure alterations.

结果表明：微观下泥灰岩岩石中发育许多微小的裂隙，为溶蚀作用的进行提供了前提条件，另外泥灰岩中大量的泥质物随可溶岩的化学溶蚀过程发生了机械侵蚀作用：泥灰岩的溶蚀作用一方面引起矿物成分发生改变，另一方面导致岩石结构的变化。

The obtainted quantitatively statistical results of the assemblages of the quartz grain surface textures formed by the chemical erosion precipitation are well correlated to the analytical results of mineral X ray diffraction and micropaleontology and can better explain the changes of sedimentary environment and paleoclimate which the marine zone concerned underwent.

石英颗粒因化学溶蚀－沉淀作用形成的组合表面特征的定量统计结果与矿物的X射线衍射和微体古生物的分析结果相对应，能较好地解释该海区经历的沉积环境和古气候变化。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。