晶石的

The variety of spinel includes red spinel, ruby color spinel or ruby spinel, purple or spinel similar to the luster of almandine, pink or rosy spinel, reddish spinel, blue spinel, gem color spinel or gem spinel, spinel like alexandrite, black spinel, candite or ceylonite.

尖晶石的种类包括（红色尖晶石、红宝石色的尖晶石或红宝石尖晶石、紫色的或类似贵榴石色泽的尖晶石、粉或玫瑰色尖晶石、桔红色尖晶石、蓝色尖晶石、蓝宝石色尖晶石或蓝宝石尖晶石、象变石的尖晶石、黑色尖晶石、铁镁尖晶石或镁铁尖晶石）。

In this paper,the Raman spectrum were used to study sapphire,dichroite,aquamarinl,topaz and kyanite,it is found that the characteristic Raman translocations of sapphire which are caused by Al-O vibration are 413cm-1,640cm-1 and 668cm-1,the characteristic Raman translocations of dichroite which are caused by Si-O vibration are 550cm-1,662cm-1,964cm-1and 1176cm-1,the characteris.

本文通过对蓝宝石、堇青石、蓝色托帕石、海蓝宝石和蓝晶石的拉曼光谱进行测试与研究，得到蓝宝石具有由Al-O振动引起的特征拉曼位移413cm-1，640cm-1和668cm-1；堇青石具有由Si-O振动引起的特征拉曼位移550cm-1，662cm-1，964cm-1和1176cm-1；海蓝宝石具有由Si-O振动引起的特征拉曼位移678cm-1，1064cm-1，1232cm-1；蓝色托帕石具有由Si-O振动引起的特征拉曼位移844cm-1和924cm-1；蓝晶石具有由Si-O引起的特征拉曼位移933cm-1和1133cm-1。

The whole sintering process of SHS converter fettling materials can be divided into three steps. The first step is the decomposition reaction of carbonates and sodium nitrate, which is an endothermic reaction. The second step is the SHS reaction, i. e. thermite reaction, the metal of Al reacts with CO〓, O〓, NO〓, Fe〓O〓 to form Al〓O〓. The speed of thermite reaction is very quick, and accompanied with large amount of heat emission and temperature rise. The third step is the reaction of spinels formation. The Al〓O〓 produced by SHS reacts with MgO to form spinels.

整个SHS补炉料的烧结过程分三步进行：第一步为碳酸盐、硝酸钠的分解反应，属于吸热反应；第二步为SHS反应即铝热反应，金属铝粉与CO〓、O〓、NO〓、Fe〓O〓等反应生成Al〓O〓，反应速度很快，并伴随有巨大的放热和温度升高；第三步为合成尖晶石的反应，SHS反应产物Al〓O〓与MgO反应生成尖晶石。

This paper introduces the latest progress of some studies of mineralogical features of spinels.

尖晶石的其它应用，如尖晶石轴承及颜料等也取得了较大的发展。

Since chemical composition and other characteristics are similar, it is quite diffictl to identify spinel from ruby and sapphires with unaided eye, which is the main reason that both gemstones have been confused long time.

尖晶石的呈色机理与红蓝宝石大体相同，化学成分和其他性质也很相似，靠肉眼来识别是不可能的，因此几世纪以来，二者一直混淆不清。不过，没有像黄色蓝宝石那样颜色的黄色尖晶石，因为使黄色蓝宝石至色的铁离子使尖晶石呈浅蓝或蓝绿色。

Some basic theories and principles of spinel formation and the basic technology and process of industrial production of spinel minerals are described.

笔者根据尖晶石的矿物学特性，对尖晶石的生成以及工业生产的基本原理、基本工艺和基本过程操作一系统的概述，并对尖晶石原料

The experiment results showed that MnO〓 and TiO〓 could accelerate the sintering reaction of the NiFe〓O〓 spinel, improve the density and the intensity of the spinel ceramic, and drop the sintering temperature as well.

研究结果表明，添加MnO〓和TiO〓可以促进尖晶石陶瓷相的烧结，提高尖晶石的密度和强度，降低烧结温度。

When the kyanite is contacting with amelt which produced in decomposing process, the decomposing temperature can besignificantly dicreased and the decomposing speed can be largely increased.

当介质中出现熔体时能够大幅度地进步蓝晶石的分解速度和降低分解温度。关键词蓝晶石；加热分解；莫来石

Some basic theories and principles of spinel formation and the basic technology and process of industrial production of spinel minerals are described. The development and application of raw minerals and products of spinels are also briefly introduced.

笔者根据尖晶石的矿物学特性，对尖晶石的生成以及工业生产的基本原理、基本工艺和基本过程作一系统的概述，并对尖晶石原料、含尖晶石工业制品的开发与应用作一简要的介绍。

Because each plant home use produces the micro spar raw material formula to be different, the crystal and the vitreous body account for the proportion to be different, immediate influence micro spar intensity.

由于各个生产厂家用以生产微晶石的原料配方不同，结晶体和玻璃体所占比例不同，直接影响微晶石的强度。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。