Tawmaw (Tawhmaw; Taw Maw), Hpakant-Tawmaw Jade Tract, Hpakant Township (Hpakan; Phakant; Phakan), Mohnyin District (Moe Hnyin District), Kachin State, Burma (Myanmar)
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Transformation zone environment of an ophiolitic complex.
Amphibolites and chloritites at the contact between albitite (plagiogranite) vein (with chromite xenocrystals) and a serpentinite host-rock.
The albitite transformed to jadeitite.
Amphibolites formed by metasomatic reaction during HP/LT metamorphism (hydrous low-T eclogite facies or blue schist facies) (subduction).
Host rocks are magnetite chloritoschists, glaucophane schists and actinolitic schists.
Article on Mawsitsit, a gem material from this locality
34 entries listed. 28 valid minerals. 2 (TL) - type locality of valid minerals.
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Nyunt, T. T. (2009). Petrological and geochemical contribution to the origin of jadeitite and associated rocks of the Tawmaw Area, Kachin State, Myanmar.