THE BASIC PRINCIPLES OF CRYSTAL

The Basic Principles Of Crystal

8Where can we get this magic wand and crystal ball?我们到哪里获得这种魔棒和水晶玻璃球?杂质、裂纹越少越好。质地好的水晶制品,应看不到星点状、云雾状和絮状分布的气液包裹体或组成玉石的颗粒。有裂纹、斑点,则属于次品。These innovations consist of unique constructions with p

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