Real fine dyed goods, a layman is no way to identify with the naked eye, and must be a scientific method of testing experts, combined with the expertise to identify. Rough workmanship of the dye materials, can be observed with the naked eye the following features:
1. Exterior colors dark, dull and bluish.
2. Color exists only on the surface, appear to "float floating" in.
3. The color distribution of the main vein pattern by staining separate the minor vein staining pattern, as the main root of plants separate the lateral root and the whole body.
4. Dyeing Jade will lose its luster and was "dry" or "dry" (opaque)-like.
5. Color bluish, unnatural.
6. Color special "neat", like wearing the same uniform, uniform.
7. Although the multi-coloring product is a single color, but it does not mean that those who would not be a multi-color dye, especially bracelets are more likely to be dyed green, purple and red tri-color bracelet, so-called "Fu, Lu , Shou "bracelet.