蓝宝石

sapphire

是泛指除红色以外的任何颜色色调的宝石级刚玉。它们的颜色有白、黄、青、蓝、紫、玫瑰等色，但以蓝色者为常见。蓝色是由于刚玉晶体中含有钛和铁所致。蓝宝石的主要产地的巴西、缅甸、泰国和澳大利亚等地。但其产出的地质条件却和红宝石不一样，主要产于碱性玄武岩中。我国山东也有类似成因的蓝宝石矿床，只是蓝宝石晶体的颜色过深。蓝宝石的另一种类型产于碱性侵入岩与富镁碳酸盐岩的内接触带夕卡岩中。

Refers to any color except red outside color gem corundum. Their colors are white, yellow, blue, blue, purple, rose and so on, but the blue is the most common. Blue is due to the result of titanium and iron in corundum crystal. Brazil, Burma, Thailand, Australia and other places of the main origin of the sapphire. But the geological conditions of the output are not the same as the ruby, mainly produced in the alkaline basalt. China's Shandong is similar to the cause of the sapphire deposit, but the color of the sapphire crystal is too deep. Another type of production of sapphire in alkaline intrusive rocks and magnesium rich carbonate rocks in the inner contact zone skarn.