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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]
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.
Over 800 pieces of jade have been recovered at the site. More than 60 of these pieces are carved. The beginning of the Late Classic at Altun Ha had one of the most interesting burials in the Maya lowlands. Structure B-4 has tombs with many jade artifacts, including a large jade plaque with a series of twenty glyphs in the phase six construction ...
Maya jade pendant from late classic to late classic period, in the Yale University Art Gallery. Jade use in Mesoamerica for symbolic and ideological ritual was highly influenced by its rarity and value among pre-Columbian Mesoamerican cultures, such as the Olmec, the Maya, and the various groups in the Valley of Mexico.
The Liangzhu (/ ˈ l j ɑː ŋ ˈ dʒ uː /) culture or civilization (3300–2300 BC) was the last Chinese Neolithic jade culture in the Yangtze River Delta.The culture was highly stratified, as jade, silk, ivory and lacquer artifacts were found exclusively in elite burials, while pottery was more commonly found in the burial plots of poorer individuals.
Oracle bone script for 玉 "jade".. The Chinese word yù 玉 "jade; gems of all kinds; (of women) beautiful; (courteous) your" has semantically broader meanings than English jade "any of various hard greenish gems used in jewelry and artistic carvings, including jadeite and nephrite; a green color of medium hue; made of jade; green like jade".
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A block of nephrite, a dark green mineral form of jade which is common in the region, and dressed into the form of a cube, about 27 inches (69 cm) per side and weighing about 2,200 pounds (1000 kg), [5] the Green Stone is supposed to have had some religious use or purpose, but what it may have been is unknown. [1]