Introduce
(baidu)
Jade is an ornamental mineral, mostly known for its green varieties, which is featured prominently in ancient Asian art.
Neolithic
(google)
The Xinglongwa culture is one of the oldest and most paradigmatic cultures of the Neolithic. Archaeological surveys in the area have revealed the use of several types of funerary jade objects.
Shang Dynasty
（LOPES）
Annular-shaped jade objects (including ring-shaped dragons) continued to be highly regarded during the Shang period.
Western Zhou
During the early phase of the Western Zhou, ritual jades retained the same design as those from the Shang period, although production decreased relatively. The great majority of jade objects were carved in the shapes of animals.
The bird motif with prominent beak, curled feathers, and long tail became predominant in the decoration of jade surfaces, as advanced incision and carving techniques became a feature of the technical and artistic craftsmanship of the late period of the Western Zhou.
Han Dynasty
the sets of jade objects found in tombs of the Han dynasty are often symbolical representations of imperial authority, where the dragon is the most prominent iconographic element as a symbol of imperial power.
Taoists:
For Taoists on the other hand, jade was viewed as an immortal substance, a spiritual source of purity and truth, and an object with alchemic properties that favored longevity, becoming particularly popular during the Warring States Period and the Han dynasty.
Value
Objects made of jade also served as emblems of both temporal and heavenly powers, and of wealth, values undoubtedly enhanced by the difficulties associated with acquisition and manufacturing.
Manufacture
Reference:
Google Search, Google, www.google.com/search?rlz=1C5CHFA_enUS714US714&biw=1440&bih=826&tbm=isch&sa=1&ei=jJvqWu7LDKrm_Qbwn6bIBw&q=jade&oq=jade&gs_l=psy-ab.3..0i67k1j0j0i67k1l2j0j0i67k1j0l2j0i67k1j0.47307.47307.0.47693.1.1.0.0.0.0.89.89.1.1.0….0…1c.1.64.psy-ab..0.1.89….0.Rd8XNK8Cs9w.
“Jade.” Wikipedia, Wikimedia Foundation, 1 May 2018, en.wikipedia.org/wiki/Jade.
Lopes, Rui Oliveira. “Securing the Harmony between the High and the Low: Power Animals and Symbols of Political Authority in Ancient Chinese Jades and Bronzes.” Stony Brook Library, 2014, eds.a.ebscohost.com/eds/command/detail?vid=16&sid=a7b9cfb5-bce0-4fd2-89a7-42e8c1e7d6be@sessionmgr4008&bdata=JnNpdGU9ZWRzLWxpdmUmc2NvcGU9c2l0ZQ==#db=hus&AN=108277157.
YouTube, YouTube, 25 Mar. 2017, www.youtube.com/watch?v=24lKYSe08Tg&t=0s&list=FLEHJOIiUw76Wspe502zIMHw&index=1.
“玉石_百度图片搜索.” 到 百度图片首页 来, image.baidu.com/search/index?tn=baiduimage&ps=1&ct=201326592&lm=-1&cl=2&nc=1&ie=utf-8&word=玉石.