Purity Archive

The Purity Classification of Jade

Posted on September 26, 2010 | No Comments
The factors that affect the purity of jade jewelry include crack, macula and white cotton and so on. Classification Benchmark Level 1 – Can’t see any crack and grey black...
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$The abilities of different gems of resolving the light into various colors are different. For the refractive index, sparkling or shining of the gems, we can set the definition: When...$
The Purity of Hue

Posted on May 27, 2010 | No Comments
The abilities of different gems of resolving the light into various colors are different. For the refractive index, sparkling or shining of the gems, we can set the definition: When...
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