Tawmaw (Tawhmaw; Taw Maw), Myitkyina-Mogaung District, Kachin State, Burma (Myanmar)

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Jade locality 120 kilometers northwest of Mogaung.
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

Mineral List:

Albite
'Chlorite Group'
Chromite
Diopside
Eckermannite
Epidote

Epidote
var: Tawmawite
Glaucophane
Jadeite
var: Chromojadeite
Katophorite
Kosmochlor

Nepheline
Nybøite
Richterite
'Serpentine Group'

16 entries listed. 12 valid minerals.

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