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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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Kosmochlor
Tawmaw, Hpakant-Tawmaw Jade Tract, Hpakant Township, Mohnyin District, Kachin State, Burma

Photo: Pavel M. Kartashov
 
 
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

Actinolite
Albite
Banalsite
'Chlorite Group'
Chromite
Diopside
Eckermannite
Epidote
var: Tawmawite
Fabrièsite (TL)
Ferro-katophorite
Glaucophane
Harmotome
Jadeite
Jadeite
var: Chromojadeite

Kosmochlor
Magnesio-arfvedsonite
var: Chromian Magnesio-arfvedsonite

Natrolite
Nepheline
Nybøite
Richterite
'Serpentine Group'
Stronalsite
Tin
Trinepheline (TL)


25 entries listed. 20 valid minerals. 2 type localities (valid minerals).

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