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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]
The best quality jade is only accessible to divers. They are permitted to use lift bags with a combined capacity of not more than 200 pounds. On rare occasions, waves can deposit pieces on the shore. [7] Four kinds of jade can be found in Jade Cove: Green is the most common type. Rarer types include Vulcan, Blue, and Botryoidal (Bubble or Grape ...
Jadeite is a pyroxene mineral with composition Na Al Si 2 O 6. It is hard (Mohs hardness of about 6.5 to 7.0), very tough, and dense, with a specific gravity of about 3.4. It is found in a wide range of colors, but is most often found in shades of green or white. Jadeite is formed only in the subduction zones of continental margins, where rock ...
The jade trade in Myanmar consists of the mining, distribution, and manufacture of jadeite—a variety of jade—in the nation of Myanmar (Burma). The jadeite deposits found in Myanmar's northern regions are the source of the highest quality jadeite in the world, noted by sources in China going as far back as the 10th century.
Collecting jade in the White Jade River near Khotan. Chinese jade refers to the jade mined or carved in China from the Neolithic onward. It is the primary hardstone of Chinese sculpture. Although deep and bright green jadeite is better known in Europe, for most of China's history, jade has come in a variety of colors and white "mutton-fat ...
Colloquially 'jade' objects in Mesoamerica are composed of jadeite, but may also refer to other similar-looking, relatively hard greenstones such as albitite, omphacite, chrysoprase, and quartzite. [3] Variation in color is largely due to variation in trace element composition. In other words, the types of trace elements and their quantities ...
Philippine jade culture. Philippine jade culture, or jade artifacts, made from white and green nephrite and dating as far back as 2000–1500 BC, have been discovered at a number of archaeological excavations in the Philippines since the 1930s. The artifacts have been both tools like chisels and ornaments such as lingling-o earrings, bracelets ...
Costa Rican jade tradition. Jadeite is presumed one of the most precious materials of Pre-Columbian Costa Rica. It, along with other similar-looking greenstones (e.g. chalcedony, serpentine, and green jasper) were cherished and worked for years. Jadeite was used to decorate the body and was presumably a symbol of power.