Nambulite
A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
About Nambulite
Matsuo Nambu
Formula:
LiMn2+4Si5O14(OH)
Often contains minor Na replacing Li.
Colour:
Reddish-brown to orange, orange-yellow
Lustre:
Sub-Vitreous
Hardness:
6½
Specific Gravity:
3.53
Crystal System:
Triclinic
Name:
Named in 1972 by M. Yoshii, Y. Aoki, and K. Maeda in honor of Matsuo Nambu (南部 松夫) (19 November 1917, Soma City, Fukushima Prefecture - 21 August 2009), economic geologist, Tohoku University, Sendai, Japan, who is known for his research in manganese minerals.
Isostructural with:
Unique Identifiers
Mindat ID:
2835
Long-form identifier:
mindat:1:1:2835:2
GUID
(UUID V4):
(UUID V4):
cc9f8c08-a704-4fe0-bc89-55c5b7f975b7
IMA Classification of Nambulite
Approved
First published:
1972
Classification of Nambulite
9.DK.05
9 : SILICATES (Germanates)
D : Inosilicates
K : Inosilicates with 5-periodic single chains
9 : SILICATES (Germanates)
D : Inosilicates
K : Inosilicates with 5-periodic single chains
65.4.1.4
65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
4 : Single-Width Unbranched Chains, W=1 with chains P=5
65 : INOSILICATES Single-Width,Unbranched Chains,(W=1)
4 : Single-Width Unbranched Chains, W=1 with chains P=5
14.18.1
14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe
14 : Silicates not Containing Aluminum
18 : Silicates of Mn and Na, K, Mg, Ca or Fe
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Nbl | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Nambulite
Sub-Vitreous
Transparency:
Transparent
Colour:
Reddish-brown to orange, orange-yellow
Streak:
Pale yellow
Hardness:
6½ on Mohs scale
Cleavage:
Perfect
{001} perfect; {010}, {100} distinct
{001} perfect; {010}, {100} distinct
Density:
3.53 g/cm3 (Measured) 3.55 g/cm3 (Calculated)
Optical Data of Nambulite
Type:
Biaxial (+)
RI values:
nα = 1.707 nβ = 1.710 nγ = 1.730
2V:
Measured: 30° , Calculated: 44°
Max Birefringence:
δ = 0.023
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r > v weak
Optical Extinction:
X' ∧ c = 19° on (010).
Chemistry of Nambulite
Mindat Formula:
LiMn2+4Si5O14(OH)
Often contains minor Na replacing Li.
Often contains minor Na replacing Li.
Common Impurities:
Ti,Al,Fe,Mg,Ca,K,H2O,C,P
Crystallography of Nambulite
Crystal System:
Triclinic
Cell Parameters:
a = 7.5391(2) Å, b = 11.7475(3) Å, c = 6.7137(2) Å
α = 93.024(2)°, β = 95.147(2)°, γ = 106.266(2)°
α = 93.024(2)°, β = 95.147(2)°, γ = 106.266(2)°
Ratio:
a:b:c = 0.642 : 1 : 0.572
Unit Cell V:
566.61 ų
Comment:
Data from Nagashima et al. (2014) for a sample from the Fianel mine; for a sample from the Gozaisho mine, they give: 7.5372(1), 11.7267(1), 6.7078(1) Å, 93.057(1), 95.147(1), 106.240(1)°, V = 565.02(2) Å3. Original data: 7.62, 11.76, 6.73 Å, 92.77, 95.08, 106.87°.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
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) |
|---|---|---|---|---|---|---|---|
| 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 | |
| 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 | |
| 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
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 2.96 Å | (100) |
| 2.97 Å | (80) |
| 2.92 Å | (70) |
| 3.17 Å | (65) |
| 3.07 Å | (60) |
| 3.09 Å | (55) |
| 3.14 Å | (45) |
Comments:
Funakozawa mine, Japan. Data from the type description.
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| High-𝑇 alteration and/or metamorphism | |
| 32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits | |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites |
Type Occurrence of Nambulite
Place of Conservation of Type Material:
National Science Museum, Tokyo, Japan, M18829.
Synonyms of Nambulite
Other Language Names for Nambulite
Relationship of Nambulite to other Species
Forms a series with:
Common Associates
Associated Minerals Based on Photo Data:
| 3 photos of Nambulite associated with Rhodonite | CaMn3Mn[Si5O15] |
| 2 photos of Nambulite associated with Gypsum | CaSO4 · 2H2O |
| 2 photos of Nambulite associated with Palenzonaite | (NaCa2)Mn2+2(VO4)3 |
| 2 photos of Nambulite associated with Braunite | Mn2+Mn3+6(SiO4)O8 |
| 1 photo of Nambulite associated with Tephroite | Mn2+2SiO4 |
| 1 photo of Nambulite associated with Hausmannite | Mn2+Mn3+2O4 |
| 1 photo of Nambulite associated with Quartz | SiO2 |
Related Minerals - Strunz-mindat Grouping
| 9.DK. | Ferrorhodonite | CaMn3Fe[Si5O15] |
| 9.DK. | Vittinkiite | MnMn3Mn[Si5O15] |
| 9.DK. | Ferri-hellandite-(Ce) | (Ca3Ce)Ce2Fe3+◻2B4Si4O22(OH)2 |
| 9.DK. | Shijiangshanite | Pb3CaAl(Si5O14)(OH)3 · 3H2O |
| 9.DK.05 | Allagite | |
| 9.DK.05 | Babingtonite | Ca2(Fe,Mn)FeSi5O14(OH) |
| 9.DK.05 | Lithiomarsturite | LiCaMn3Si5O14(OH) |
| 9.DK.05 | Manganbabingtonite | Ca2(Mn,Fe)FeSi5O14(OH) |
| 9.DK.05 | Marsturite | NaCaMn3Si5O14(OH) |
| 9.DK.05 | Natronambulite | (Na,Li)(Mn,Ca)4Si5O14OH |
| 9.DK.05 | Rhodonite | CaMn3Mn[Si5O15] |
| 9.DK.05 | Scandiobabingtonite | Ca2(Fe2+,Mn)ScSi5O14(OH) |
| 9.DK.10 | Santaclaraite | CaMn4[Si5O14OH](OH) · H2O |
| 9.DK.15 | Saneroite | NaMn2+5[Si5O14(OH)](VO3)(OH) |
| 9.DK.20 | Hellandite-(Y) | (Ca,REE)4Y2Al◻2(B4Si4O22) (OH)2 |
| 9.DK.20 | Tadzhikite-(Ce) | Ca4Ce3+2Ti◻2(B4Si4O22)(OH)2 |
| 9.DK.20 | Hellandite-(Yb) | (Ca,Y)4(Yb,Y)2(Al,Fe3+,Ti4+)(Be,Li)2[B4Si4O22](O,F,OH)2 |
| 9.DK.20 | Mottanaite-(Ce) | Ca4(Ce,REE)Σ2Al(Be1.5◻0.5)Σ2[B4Si4O22]O2 |
| 9.DK.20 | Ciprianiite | Ca4[(Th,U),Ca]Σ2Al(Be0.5◻1.5)Σ2[B4Si4O22](OH)2 |
| 9.DK.20 | Hellandite-(Ce) | (Ca,REE)4Ce2Al◻2(B4Si4O22) (OH)2 |
| 9.DK.20 | Ferri-mottanaite-(Ce) | Ca4Ce2Fe3+(Be1.5◻0.5)[Si4B4O22]O2 |
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
mindat.org URL:
https://www.mindat.org/min-2835.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Nambulite
Localities for Nambulite
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.
Australia | |
| Coombs et al. (2009) |
Austria | |
| Kolitsch et al. (2018) |
Brazil | |
| Schneider et al. (1983) +2 other references |
India | |
| Mukhopadhyay et al. (2005) |
Italy | |
| Balestra et al. (2009) |
Japan | |
| Matsubara (1977) +3 other references |
| Yoshii et al. (1972) |
| Nagase et al. (2012) |
| Dr. Matsuo Nambu collection (curated at Geological Survey of Japan) |
Namibia | |
| Von Knorring et al. (1978) +1 other reference |
Romania | |
| Hîrtopanu et al. (2003) +1 other reference | |
| minerals-of-the-carpathians.eu (2008) |
| Hîrtopanu (1997) +1 other reference |
Slovakia | |
| Koděra (1986) |
| Martin Števko & Pavol Myšľan |
Sweden | |
| Otter (2004) |
Switzerland | |
| Nagashima et al. (2014) |
Quick NavTopAbout NambuliteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Gozaisho Mine, Iwaki City, Fukushima Prefecture, Japan