拥有地质学学士学位及地球化学研究生学历。
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Dimensions (mm) 15 x 12 x 5mmWeight (cts) 5.6Shape 自由形状Type 粗料ANDAMOOKA RAINBOW MATRIXThis is natural opal that has been treated with sugar. When you cut you will have to re treat-we just use sugar or you can use oil
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矿石及陨石