Crystal stone maw-sit-sit is a rare green ornamental rock that has dark green to black veining, it sometimes has white spots. Crystal stone maw-sit-sit is coming from the class of rock with monoclinic crystal system and composed by chromium-rich rock. Both of its birefringence and cleavage are not applicable. The color of crystal stone maw-sit-sit is mottled bright green with black and white.
Crystal stone maw-sit-sit was discovered in Tawmaw, Kachin State, Burma (Myanmar) in the early 1960s, near to the historic imperial jadeite mines in the north of the country. Its name was first used by the natives who mined this rock, and it was first recorded in 1963 by Swiss gemologist Eduard Gűbelin (1913-2005). Crystal stone maw-sit-sit has no birefringence and the hardness stop at level 6.
Because this gem rock is rare, it is typically set into gold rather than silver. With 1.52-1.74 refractive index and specific gravity 2.46-3.15, this gemstone, however, look beautiful in either metal color. And some collectors have also had stones set into more expensive platinum. Crystal stone maw-sit-sit is never faceted, but generally cabochon cut or cut into beads. Its rarity means it is normally cut only for collectors. Crystal stone maw-sit-sit has vitreous-to-greasy luster and its fracture is conchoidal to irregular.
Like lapis lazuli, this exceptional natural gemstones, crystal stone maw-sit-sit is a rock, not a mineral, since it consists of many minerals. The habit is granular rock with grains of kosmochlor, analcime, etc. It is a chromium-rich metamorphic rock, and has a dramatic green base color with black spots, bands, splotches, and whorls. The prevailing mineral is kosmochlor, a sodium-chromium pyroxene. Crystal stone maw-sit-sit also contains chromium-enriched jadeite, a chromian amphibole, albite, analcime, and chromite. The high chromium content of this material is responsible for its glowing green color. The only source of crystal stone maw-sit-sit is the place where it was discovered. Crystal stone maw-sit-sit is opaque.
