| Locality type: | Massif |
| Classification |
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| Species: | 'Ferro-ferri-leakeite' (not an IMA approved species) |
| Formula: | [Na][Na2][Fe22+Fe23+Li]Si8O22(OH)2 |
| Formation: | Primary |
| Chemical Analyses: |
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| Oxide wt%: | | 1 |
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| Nb2O5 | 0.06 % |
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| SiO2 | 53.07 % |
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| TiO2 | 1.03 % |
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| ZrO2 | 0.01 % |
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| SnO2 | 0.01 % |
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| Al2O3 | 0.46 % |
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| Fe2O3* | 17.05 % |
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| FeO* | 4.99 % |
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| MnO | 4.36 % |
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| ZnO | 2.10 % |
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| MgO | 2.12 % |
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| CaO | 0.15 % |
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| SrO | 0.02 % |
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| PbO | 0.01 % |
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| Na2O | 8.31 % |
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| K2O | 2.52 % |
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| Li2O (by stoichiometry) | 1.78 % |
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| F | 1.83 % |
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| H2O (by stoichiometry) | 0.89 % |
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| -O=F | -0.77 % |
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| Total: | 100 % |
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| Empirical formulas: | | 1 | (Na0.52K0.48)(Na1.90Li0.07Ca0.02)[(Fe2+0.63Mn2+0.56Mg0.47Zn0.23Ti0.12)(Fe3+1.93Al0.06)Li1.00][Si7.98Al0.02O22]([OH]0.90F0.87O0.23) |
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| Sample references: | |
| Comments: | occurs as the dominant composition of the fairly abundant amphibole present in the sample, along with subordinate more Mg- and F-rich patches of ferri-fluoro-leakeite. The composite amphibole occurs with abundant aegirine-augite, quartz, alkali feldspar, scattered leucosphenite and minor kupletskite-(Cs). See the locentry for "Leakeite Root Name Group" for more information on the occurrence and characterization of this material. |
| Confirmation |
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| Validity: | Confirmed |
| Confirmation Methods: | EPMA |
| Data |
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| Mineral Data: | Click here to view Ferro-ferri-leakeite data |
| Locality Data: | Click here to view Dara-i-Pioz Massif, Districts of Republican Subordination, Tajikistan |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1590884 |
| Long-form Identifier: | 1:3:1590884:9 |
| GUID (UUID V4): | 8086a0a8-5372-432c-a3c8-82a0def38dcf |
| References |
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