Nambulite-Natronambulite Series
A solid-solution series between two end-member minerals
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About Nambulite-Natronambulite Series
Crystal System:
Triclinic
Series Formula:
LiMn42+Si5O14(OH) to (Na,Li)(Mn,Ca)4Si5O14OH
Unique Identifiers
Mindat ID:
8772
Long-form identifier:
mindat:1:1:8772:4
Chemical Analysis
Oxide wt%:
| 1 | |
|---|---|
| SiO2 | 48.92 % |
| MnO | 45.39 % |
| MgO | 0.01 % |
| CaO | 1.04 % |
| SrO | 0.02 % |
| Na2O | 4.10 % |
| Li2O (by stoichiometry) | 0.37 % |
| H2O (by stoichiometry) | 1.47 % |
| Total: | 101.32 % |
Empirical formulas:
| Sample ID | Empirical Formula |
|---|---|
| 1 | (Na0.81Li0.15Ca0.04)(Mn2+0.93Ca0.07)Mn2+1.00Mn2+1.00Mn2+1.00[Si5.00O14](OH) |
Sample references:
| ID | Locality | Reference | Notes |
|---|---|---|---|
| 1 | Woods Mine, Inglis Co., New South Wales, Australia | Presumed natronambulite associated with serandite, in a matrix of abundant quartz, braunite and mangano-mangani-ungarettiite. Li content is estimated from stoichiometry only (hence the unconfirmed nature of the ID, although the Li-dominant end-member nambulite is reported from the locality); H2O is also calculated from stoichiometry. |
Crystallography of Nambulite-Natronambulite Series
Crystal System:
Triclinic
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0020224 | Natronambulite | Nagashima M, Armbruster T, Kolitsch U, Pettke T (2014) The relation between Li <-> Na substitution and hydrogen bonding in five-periodic single-chain silicates nambulite and marsturite: A single-crystal X-ray study American Mineralogist 99 1462-1470 | 2014 | Gozaisho mine, Iwaki, Japan | 0 | 293 | |
| 0020223 | Nambulite | Nagashima M, Armbruster T, Kolitsch U, Pettke T (2014) The relation between Li <-> Na substitution and hydrogen bonding in five-periodic single-chain silicates nambulite and marsturite: A single-crystal X-ray study American Mineralogist 99 1462-1470 | 2014 | Gozaisho mine, Iwaki, Japan | 0 | 293 | |
| 0020222 | Nambulite | Nagashima M, Armbruster T, Kolitsch U, Pettke T (2014) The relation between Li <-> Na substitution and hydrogen bonding in five-periodic single-chain silicates nambulite and marsturite: A single-crystal X-ray study American Mineralogist 99 1462-1470 | 2014 | Fianel mine, Grisons, Switzerland | 0 | 293 | |
| 0009545 | Nambulite | Narita H, Koto K, Morimoto N, Yoshii M (1975) The crystal structure of nambulite (Li,Na)Mn4Si5O14(OH) Acta Crystallographica B31 2422-2426 |  | 1975 | 0 | 293 |
CIF Raw Data - click here to close
Common Associates
Associations Based on Photo Data:
| 3 photos of Nambulite-Natronambulite Series associated with Clino-suenoite | ◻{Mn2+2}{Mg5}(Si8O22)(OH)2 |
| 1 photo of Nambulite-Natronambulite Series associated with Helvine | Be3Mn2+4(SiO4)3S |
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 Nambulite-Natronambulite Series
mindat.org URL:
https://www.mindat.org/min-8772.html
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References for Nambulite-Natronambulite Series
Reference List:
Localities for Nambulite-Natronambulite Series
Showing 30 localities.
symbol to view information about a locality.
The 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.
Gozaisho Mine, Iwaki City, Fukushima Prefecture, Japan