Mineral: | main constituents: Chromite / Kosmochlor / Chromojadeite / Ekermannite / Arfvedsonite / Symplectite (texture of several intergrown minerals)
| Chemical Formula: | FeCr2O4 / NaCr[Si2O6] / Na(Al,Cr)Si2O6 / [Na][Na2 ][(Mg,Fe 2+ ) 4Al][(OH)2 |Si8O22] / [Na][Na2][Fe2+ 4Fe3+][(OH)2 | Si8O22] | Size: | 38,9 x 24,1 x 18,3 - 14,4 x 8,4 x 3,8 mm | Weight: | | Transparence: | | Quantity: | | Origin: | Tawmaw (Tawhmaw; Taw Maw), Myitkyina-Mogaung district, Kachin State, North- Burma (Myanmar) | The cabochons have a weight of 26,56 cts, the rough 88,62 cts.
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