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藍寶石

sapphire

是泛指除紅色以外的任何顏色色調的寶石級剛玉。它們的顏色有白、黃、青、藍、紫、玫瑰等色，但以藍色者為常見。藍色是由于剛玉晶體中含有鈦和鐵所致。藍寶石的主要產地的巴西、緬甸、泰國和澳大利亞等地。但其產出的地質條件卻和紅寶石不一樣，主要產于堿性玄武巖中。我國山東也有類似成因的藍寶石礦床，只是藍寶石晶體的顏色過深。藍寶石的另一種類型產于堿性侵入巖與富鎂碳酸鹽巖的內接觸帶夕卡巖中。

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.