Select your language

Eurojade - Le Spécialiste du Jade - The Jade Specialist


Maw sit sit has been placed in the jadeite section but the truth is that it should be placed apart. Maw sit sit could be called the "cousin" of jadeite, since it is composed of several - generally three to six - different minerals : kosmochlor (ureyite) - which means "green from the space" as it was initially found in meteorites - chrome jadeite, chrome amphibole, chromite, symplektite, etc. Maw sit sit deposits are found near jadeite deposits of Tawmaw and Namshawa in Myanmar. It was discovered in 1963 by Dr Eduard Gubelin* who gave the mineral the name of a nearby village.

rough maw sit sit

Maw sit sit is the result of high pressure and low metamorphism of igneous rocks. As the different minerals composing maw sit sit contain a lot a chromium, they account for the particular deep colour of maw sit sit.Maw sit sit is generally rich deep green with black or green mottled spots, swirls, veins or bands throughout.

- R.I. (refractive index): 1.52-1.74

- S.G. (specific gravity): 2,5-3,5

- Hardness (Mohs scale): 6-7.

Maw sit sit should not be cleaned using ultrasonic cleaners or chemical cleaning agents. Beware of rapid changes of temperatures. Maw sit sit is expensive because it is very rare: as of today, there is no other occurence known as the one in Myanmar.

maw sit sit cabochon
* Eduard Gubelin was born in Switzerland in Lucerne in 1913 and passed away in 2005. He is considered to be the father of modern gemmology