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Xixia jade is an altered ultrabasic rocks, mainly distributed in Henan Province, Xixia County, Xixia jade found in the nineteen sixties, to 70 time just a small amount of mining, now the annual output has reached tens of thousands of tons, mainly sold to Beijing, Guangdong, Henan, Liaoning and other places.
Xixia jade main minerals serpentine occupies 80%-95%, followed by magnetite, tremolite actinolite, and small amounts of calcite. Delicate texture,poly bag manufacturer
dense and hard, Mohs hardness of 5-6, transparent to translucent, white, oily luster or vitreous luster, density of about 2.7, large blocks, small cracks, jade has yellow, brown, red stone skin. In the net at present and the antique market in Xixia jade often used to impersonate Xinjiang Hotan jade, is very deceptive.
How to distinguish between Xixia and Hetian jade jade? As long as the master of the following points are easily differentiated.
1 Xixia jade is exquisite, not Yu Hua, sometimes visible block, paste batt, Hotan white jade eye can see fine Xiao Yun flake, cloud-like structure of Yu Hua.
2 white Xixia jade is a little gray hair and pale, with other color is bright, as shown in Figure 8C and figure 8D 8e in red, yellow, 8D,fashion jewelry
8e yellow often used to impersonate material, color is very delicate, very uniform, the 8 for true and field jade white.
3 Xixia jade light observation, appears to be very boring, less light. Hetian jade light observation feeling relatively bright, but not very clear, this is the result of Hetian jade in the internal structure is special, the light in the jade occurs within a diffusion.
4 the Xixia jade hardness than Hetian jade slightly low, Mohs hardness of 5-6, Hotan jade Mohs hardness of about 6.5, glass Mohs hardness of 5, Xixia jade although we glass, but its surface sometimes will leave scars, and Hetian jade never.
5 Xixia jade surface although very delicate, but using 10-20 times the magnifying glass observation, will find that with Small Sag in the pits, hong kong restaurants
and Hetian jade has both concave and convex, sometimes also can see hand polished legacy along one direction lines, learn to use 20 times the magnifying glass observation of the surface of the jade, summarize some rules, we will let you see that other people can't see things, thus less tuition, less detours.
In addition, the Henan province Xixia county also produces black green jade, jade is very similar with Xinjiang, Xixia jade is a kind of good jade, large blocks,wedding dresses small cracks, polishing or, mainly used for large-scale decoration carving, as long as no fake Hetian jade, get illegal profiteering on the line.