’’’Sheep-Fat-Oily White Jade’’’
Sheep-Fat-Oily White Jade is also called Mutton Fat White Jade by some collectors.
We know that jade is a beautiful semi-translucent precious stone that is denser than other stones and characterized by shiny, smooth, heavy surfaces and distinct sounds when knocked on. The beautiful characteristics of this work of art have lead to its value as a wonderful decorative keepsake, as well as a great collection for investment, due to the fact that the Ancient Old Jade grows in value as it ages.
Among Ancient Old Jades, the Sheep-Fat-Oily White Jade was the gem class jade of best quality ever found in Han Dynasty China. Since it was recorded in the history 2000 years ago, modern people have never seen it before. It was the only privilege of ancient Emperors' family in Han Dynasty China.
The work of art made by this kind of jade was left scarcely and has been seen rarely in this world. Modern collectors even use personal imaginations and the data obtained from internet to guess what it will be. Its colour is as that of sheep fat and has oily shining luster. Its inner jade muscular tissue contents have semi-boiled rice phenomena existing in the natural ancient archaic old jades. Nevertheless the jades those were carved in Ming Dynasty, Qing Dynasty, and Modern China have no such phenomena.
It looks like foggy translucent due to oily sheep mutton fatlike appearance, while white jade looks different in this respect. Its oily white shining luster is seen with slight yellow light. It's oily and solid, translucent and clean, white and without cracks, just like solidified sheep mutton fat. Its skin has no deceiving glass light, thus can be slightly varied after the long-term wear attached to human skin by its owner, while the jade that has been manually handled with deceiving glass light in its appearance has no such a function of varied skin colors any more.
The archaic works of art done by this kind of jade are rare. A Carved Archaic Sheep-Fat-Oily White Jade "Linking Clouds" Royal Dragon Pendant 206 B.C. - A.D. 25 Western Han Dynasty China (H 4.4 x W 6.7 x D 1 cm 56 grams)  was carved with the same "Archaic Sheep-Fat-Oily White Jade" as that used in "Western Han Queen's Seal" (H 2 x W 2.8 x D 2.8 cm 33 grams ) collected by Shaanxi History Museum, Shaanxi Province, China. 
Even if the "Archaic Sheep-Fat-Oily White Jade" has been kept in water and earth for more than 2000 years, it is only slightly soaked in skin parts and still the same smooth, shiny, oily as before due to its solid and dense quality. This is its very precious value never to be broken over thousand years and the main reason why it is classified as gem class valuable precious stone.
The "Archaic Sheep-Fat-Oily White Jade Carved Western Han Queen's Seal" (Weight 33 g) collected by Shaanxi History Museum, Shaanxi Province, China, and the "Archaic Sheep-Fat-Oily White Jade Carved Western Han Dynasty Linking Clouds Royal Dragon Pendant", both are rare and have been kept in water and earth for more than 2000 years, but they are only slightly soaked in skin parts and still the same smooth, shiny, oily as before due to its solid and dense quality. This proves that their very precious value never to be broken over thousand years and the main reason why the works of art carved by Sheep-Fat-Oily White Jade have always been classified as gem class valuable national treasures in jade market.
’’’Wonderful and Amazing Soakage’’’
The "Archaic Sheep-Fat-Oily White Jade Carved Western Han Dynasty Linking Clouds Royal Dragon Pendant" has incidentally been soaked in its tail skin part to become "dark brown". Thus it's also a very beautiful jade carved work of art with rather rare "Wonderful and Amazing Soakage - An Archaic Sheep-Fat-Oily White Jade Carved Sheep Dragon with Dark Brown Tail" existing in the world nowadays.
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