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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.
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".
This is a list of archaeological sites on the National Register of Historic Places in Illinois. Historic sites in the United States qualify to be listed on the National Register of Historic Places by passing one or more of four different criteria; Criterion D permits the inclusion of proven and potential archaeological sites . [ 1 ]
The lapidary arts form the core of the Lizzadro Museum's collections, particularly jade carvings including the Altar of the Green Jade Pagoda by Chang Wen-Ti. [7] However, the museum also displays a selection of uncarved gemstones, fossils, and other minerals, as well as sculptures, mosaics, dioramas, and a miniature castle made of carved stone and gold called "Castle Lizzadro" by William ...
A Neolithic polished jadeitite axe head found at Colomiers in southern France. Jadeitite is a metamorphic rock found in blueschist-grade metamorphic terranes.It is found in isolated metasomatically altered rock units within serpentinite associated with subduction zone environments.
The Attingham Estate in England, an 18 th century mansion open to the public with 200 acres of parkland, invites visitors to stroll through the buried ruins of the Roman city of Wroxeter. Now ...
The Riverton Site is an archaeological site located immediately west of the Wabash River and northeast of Palestine, Illinois. The site, which dates from the Late Archaic period (3000-1000 BCE), is the type site of the Riverton culture. The Riverton culture, of which only three known sites had been discovered as of 1978, inhabited the central ...