45.40 CTS LARGE RARE MAW SIT SIT JADE STONE [ST7726]

Item Information

Dimensions (mm) not provided
Weight (carats) not provided
Colors
Certified Gemstone

SEDA GEMS

MAW SIT SIT

This is a natural untreated stone from Burma-It is well polished high domed stone ready for setting.

Stunning green colour.

Weight 45.40 cts app

Size 38 x 15 x 5 app

 


Maw-Sit-Sit

Maw-sit-sit is a rare, intense green variety of jadeite found in Tawmaw, the jade mining region of North-Western Myanmar{Burma}. First discovered in 1963, maw-sit-sit is composed of jadeite and chromite with chromium (Cr) as the principle coloring agent, and kosmochlor (Ko) forming the black spots.

 

There are two completely different minerals associated with the name "jade," "nephrite," and "jadeite." Jadeite is a pyroxene, part of a rock-forming silicate mineral group associated with metamorphic rock, while nephrite is an amphibole, a variety of actinolite that is part of the rock-forming inosilicate mineral containing ions of iron and/or magnesium. The mineral Jadeite is comprised of blocky, interlocking granular crystals, while nephrite is comprised of fibrous crystals. These differences are what accounts for the identifiable characteristics of each mineral. Jadite is described as having a granular, or "sugary" texture, whereas nephrite's texture is described as "silky."

$50.00 USD

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Pricing & Details

Auction ID 396152
Watchers 10 watching
Viewed 5,968 times
Starts 23rd Dec 2013 12:41am PST

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