Polylithionite-1M
A structural variant of Polylithionite
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Formula:
KLi2Al(Si4O10)(F,OH)2
Crystal System:
Monoclinic
Unique Identifiers
Mindat ID:
46650
Long-form identifier:
mindat:1:1:46650:3
Chemistry of Polylithionite-1M
Mindat Formula:
KLi2Al(Si4O10)(F,OH)2
Element Weights:
Chemical Analysis
Empirical formulas:
| Sample ID | Empirical Formula |
|---|---|
| 1 | (K0.97Na0.03Rb0.01)Σ1.01(Li2.04Al0.84Ti4+0.09Fe3+0.03)Σ3.00(Si3.98Al0.02)O10[F1.68(OH)0.33]Σ2 |
Sample references:
Crystallography of Polylithionite-1M
Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Space Group:
B2
Setting:
C2
Cell Parameters:
a = 5.251(1) Å, b = 9.066(2) Å, c = 10.087(2) Å
β = 100.694(5)°
β = 100.694(5)°
Ratio:
a:b:c = 0.579 : 1 : 1.113
Unit Cell V:
471.86 ų (Calculated from Unit Cell)
Comment:
From Elmi et al. (2014) (sample MLG-114).
Radioactivity
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Polylithionite-1M
mindat.org URL:
https://www.mindat.org/min-46650.html
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References for Polylithionite-1M
Reference List:
Hawthorne, Frank C., Sokolova, Elena, Agakhanov, Atali A., Pautov, Leonid A., Karpenko, Vladimir Yu. (2019) The crystal structure of polylithionite-1M from Darai-Pioz, Tajikistan: the role of short-range order in driving symmetry reduction in 1M Li-rich mica. The Canadian Mineralogist, 57 (4) 519-528 doi:10.3749/canmin.1800083
Localities for Polylithionite-1M
Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Tajikistan | |
| Hawthorne et al. (2019) |
USA | |
| David Lowe personally analyzed sample ... |
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