玉材的品种和产地繁多,同一产地的同一品种也存在着品质的档次差别。图1、图2,都是和田仔玉,由于皮色和玉色的不同,价值也不相同。同一品种不同产地的玉材更会有着千差万别的品质差异。图3是青海白玉兽,图4是和田仔料白玉羊头,二者会有几百倍的差价。这些 Jade variety and origin of many varieties, the same origin of the same species there is also the quality of grade differences. Figure 1, Figure 2, are Tian Tian jade, due to skin color and jade color, the value is not the same. The same variety of different origin of jade will have vastly different quality differences. Figure 3 is the white jade Qinghai, Figure 4 is the Wadao white jade head material, there will be hundreds of times the difference between the two. These ones