| Classification |
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| Species: | Eckermannite |
| Formula: | NaNa2(Mg4Al}Si8O22(OH)2 |
| Comments: | Shi et al. (2012) presents a microprobe data that corresponds to the following formula:
(Na0.921K0.043)0.964(Na1.847Ca0.092Mn0.037Fe2+0.034)2.00(Mg3.835Fe2+0.125Fe3+0.210Cr3+0.009Al0.821)5.000(Si7.844Al0.156)8.00O22((OH)2.000
F3+ and O content is calculated, and formula normalized by the authors.
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| Confirmation |
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| Validity: | Valid - Type Locality |
| Associated Minerals Based on Photo Data: |
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| Jadeite | β1 photo of Eckermannite associated with Jadeite at this locality. |
| Data |
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| Mineral Data: | Click here to view Eckermannite data |
| Locality Data: | Click here to view Hpakant-Tawmaw Jade Tract, Hpakant Township (Hpakan; Phakant; Phakan), Mohnyin District, Kachin State, Myanmar |
| Photo Gallery | View Gallery (2 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 865462 |
| Long-form Identifier: | 1:3:865462:5 |
| GUID (UUID V4): | bd00a78e-f590-4576-8b78-ed1108dc21c6 |
| Localities for Eckermannite in this Region |
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| Hpakant (Hpakan; Phakant; Phakan), Hpakant-Tawmaw Jade Tract, Hpakant Township (Hpakan; Phakant; Phakan), Mohnyin District, Kachin State, Myanmar |
| Tawmaw (Tawhmaw; Taw Maw), Hpakant-Tawmaw Jade Tract, Hpakant Township (Hpakan; Phakant; Phakan), Mohnyin District, Kachin State, Myanmar |
| References |
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Shi, G. H., Zhu, X. K., Deng, J., Mao, Q., Liu, Y. X., & Li, G. W. (2011). Geochimica et Cosmochimica Acta, 75(6), 1608-1620 Oberti, R., Boiocchi, M., Hawthorne, F. C., Ball, N. A., Harlow, G. E. (2015) Eckermannite revised: The new holotype from the Jade Mine Tract, Myanmar--crystal structure, mineral data, and hints on the reasons for the rarity of eckermannite. American Mineralogist, 100 (4) 909-914 doi:10.2138/am-2015-5132 |
Hpakant-Tawmaw Jade Tract, Hpakant Township, Mohnyin District, Kachin State, Myanmar