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Main jade producing countries. Jade is an umbrella term for two different types of decorative rocks used for jewelry or ornaments.Jade is often referred to by either of two different silicate mineral names: nephrite (a silicate of calcium and magnesium in the amphibole group of minerals), or jadeite (a silicate of sodium and aluminum in the pyroxene group of minerals). [1]
Jade was used to create many utilitarian and ceremonial objects, ranging from indoor decorative items to jade burial suits, reflecting the ancient Chinese belief that jades would confer immortality or prolong life and prevent decay. Jade spoons, spatulas, and pestles were used to make medicine in order for the jade to bestow its special virtues ...
A bi is a flat jade disc with a circular hole in the centre. Neolithic bi are undecorated, while those of later periods of China, like the Zhou dynasty, bear increasingly ornate surface carving (particularly in a hexagonal pattern) whose motifs represented deities associated with the sky (four directions) as well as standing for qualities and powers the wearer wanted to invoke or embody.
Most of the jade work in Costa Rica was done with a particular type. It was a deep, blue-green color, and the same type the Olmecs used. In 1998 an enormous region of this particular jade was uncovered after a hurricane in Guatemala. The area is located in south east Guatemala In the Motagua River Valley.
In the absence of metal tools, ancient craftsmen used tools themselves made of jade, leather strops, string saws to cut and carve jade, and reeds or other hard materials to drill holes. Working the raw stone into a finished piece was a very labor-intensive process, often requiring repeated physical movement to shape the jade. [ 12 ]
Jadeite is the principal mineral making up the most valuable form of jade, a precious stone particularly prized in China. Most gem-quality jadeite jade comes from northern Myanmar. Jade tools and implements have been found at Stone Age sites, showing that the mineral has been prized by humans since before the beginning of written history.
The earliest extant account is the Heshi (和氏, "Mr. He") chapter of the classic Hanfeizi, attributed to Han Fei (c. 280–233 BC). The Hanfeizi version involves Mr. He presenting his jade to the first three "kings" of Chu state: "King Li of Chu" (楚厲王) posthumously refers to Viscount Fenmao (r. 757–741 BCE), his brother King Wu of Chu (楚武王, r. 740–690 BCE) who was the first ...
The earliest surviving examples of lingling-o, dating back to around 500 BC, were made out of nephrite jade, but many later examples were also made of shell, gold, copper, and wood; [2] the different materials suggest differences in the wearer's social standing. [2]