Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on MindatThe Mindat Store
Minerals by PropertiesMinerals by ChemistryRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Maw Sit Sit

This page is currently not sponsored. Click here to sponsor this page.
'Maw Sit Sit' is a polyminerallic material (a "rock") from Burma (Myanmar) which has achieved some prominence as both a gemstone and a carving material. While some have classed this as a "jadeite" (and it has been called 'Chrome Jade'), in reality the dominant mineral is another clinopyroxene, kosmochlor and it should not, therefore, be considered a variety of jadeite. It was first noted in the early 1960’s by the famed Swiss gemologist Eduard J. Gübelin during field investigations in Burma.

Composition of Maw Sit Sit:

Kosmochlor – the dominant mineral species in mawsitsit is kosmochlor, a sodium chromium pyroxene previously called “ureyite”. (Ureyite was discredited as a mineral species when it was determined to be identical to kosmochlor.) Kosmochlor constitutes about 60 percent of mawsitsit, and is the primary component of both the brilliant emerald green and dark green-black patches.

Chromian Jadeite – a chromium-enriched jadeite makes up approximately 15 percent of mawsitsit.

● Chromian Eckermannite – a chromium-enriched sodium, magnesium, iron amphibole group mineral, makes a small contribution of only about 4 percent of mawsitsit.

● Chromian Albite – a chromium-enriched albite usual constitutes 1 per cent of mawsitsit.

Visit for gemological information about Maw Sit Sit.

Common Associates

Associated Minerals Based on Photo Data:
Kosmochlor1 photo of Maw Sit Sit associated with Kosmochlor on
Albite1 photo of Maw Sit Sit associated with Albite on
Chromojadeite1 photo of Maw Sit Sit associated with Chromojadeite on

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for Maw Sit Sit URL:
Please feel free to link to this page.
Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2017, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: July 27, 2017 19:50:25 Page generated: July 24, 2017 01:56:25
Go to top of page