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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, “Jadite” or “Jade-ite” is a type of jade green opaque milk glass, originally popular in the United States in the early to mid-20th century. A blue milk glass called “Delphite” (Delfite, Jeannette Glass) and "Azur-ite" (Anchor Hocking) was also produced for several years.
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]
Jadeitite consists almost entirely of the pyroxene mineral jadeite and is typically mined as a source of the ornamental rock or gemstone, jade. Occurrences include Myanmar , Guatemala , Japan , Kazakhstan and in the Coast Ranges of western North America.
Since her first discovery, Ridinger also discovered many varieties of Central American jadeite that had never before been seen, such as lilac jade and a variety of jadeite with pyrite inclusions. [6] From 1974 to 1996, the only documented source of jadeite in Mesoamerica was the lowland Motagua River valley.
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.
It is composed of several different minerals, including kosmochlor (also known as ureyite), varying amounts of chromium-enriched jadeite, and albite feldspar. [2] Maw sit sit can have a refractive index ranging from 1.52-1.68, [3] [4] and a hardness rating of 6 to 7 on the Mohs scale. Maw sit sit has a specific gravity ranging from 2.45 to 3.15 ...
The Jadeite Cabbage (Chinese: 翠玉白菜; pinyin: Cuìyù Báicài; Pe̍h-ōe-jī: Chhùi-ge̍k Pe̍h-chhài) or Jadeite Cabbage with Insects is a piece of jadeite carved into the shape of a Chinese cabbage head, and with a locust and katydid camouflaged in the leaves.