Gjerdingenite-Mn
This page is currently not sponsored. Click here to sponsor this page.
About Gjerdingenite-Mn
Formula:
K2Mn2+(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2O
Colour:
Pale yellowish to tan
Lustre:
Vitreous
Hardness:
5
Specific Gravity:
2.93 (Calculated)
Crystal System:
Monoclinic
Member of:
Name:
For the type locality and the dominant cation (Mn) in the D site of the structure, according to the labuntsovite group nomenclature.
Type Locality:
Classification of Gjerdingenite-Mn
Approved
Approval year:
2003
First published:
2004
8/E.07-
9.CE.30c
9 : SILICATES (Germanates)
C : Cyclosilicates
E : [Si4O12]8- 4-membered single rings (vierer-Einfachringe), without insular complex anions
9 : SILICATES (Germanates)
C : Cyclosilicates
E : [Si4O12]8- 4-membered single rings (vierer-Einfachringe), without insular complex anions
Physical Properties of Gjerdingenite-Mn
Vitreous
Transparency:
Translucent
Colour:
Pale yellowish to tan
Hardness:
5 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
2.93 g/cm3 (Calculated)
Optical Data of Gjerdingenite-Mn
Type:
Biaxial (+)
RI values:
nα = 1.670 nβ = 1.685 nγ = 1.775
2V:
Measured: 52° , Calculated: 46°
Max Birefringence:
δ = 0.105

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:
weak r < v
Pleochroism:
Visible
Comments:
Yellow Brown
Colourless
Colourless
Chemical Properties of Gjerdingenite-Mn
Formula:
K2Mn2+(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2O
IMA Formula:
K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2O
Common Impurities:
Na,Fe
Crystallography of Gjerdingenite-Mn
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Cell Parameters:
a = 14.563 Å, b = 13.961 Å, c = 7.851 Å
α = 117.62°
α = 117.62°
Ratio:
a:b:c = 1.043 : 1 : 0.562
Unit Cell V:
1414.3 ų
Z:
2
Twinning:
On {001}
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) |
---|---|---|---|---|---|---|---|
0007086 | Gjerdingenite-Mn | Raade G, Chukanov N V, Kolitsch U, Mockel S, Zadov A E, Pekov I V (2004) Gjerdingenite-Mn from Norway - a new mineral species in the labuntsovite group: descriptive data and crystal structure European Journal of Mineralogy 16 979-987 | 2004 | Gjerdingselva, Lunner, Oppland, Oslo Region, Norway | 0 | 293 |
CIF Raw Data - click here to close
Geological Environment
Paragenetic Mode(s):
• Granitic
Type Occurrence of Gjerdingenite-Mn
General Appearance of Type Material:
Rod-like crystals and groups
Place of Conservation of Type Material:
Freiberg University, Freiberg, Germany. Inventory number 80250
Geological Setting of Type Material:
In miarolitic cavities in a permian sodic granite (ekerite).
Associated Minerals at Type Locality:
Reference:
Raade, G., Chukanov N.V., Kolitsch U., Möckel S., Zadov, A.E., Pekov I.V. (2004): Gjerdingenite-Mn from Norway - a new mineral species in the labuntsovite group: descriptive data and crystal structure. European Journal of Mineralogy, 16: 979-987
Synonyms of Gjerdingenite-Mn
Other Language Names for Gjerdingenite-Mn
Relationship of Gjerdingenite-Mn to other Species
Member of:
Other Members of this group:
Burovaite-Ca | (Na,K)4Ca2(Ti,Nb)8(Si4O12)4(OH,O)8 · 12H2O | Mon. 2/m : B2/m |
Gjerdingenite-Ca | K2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2O | Mon. 2/m : B2/m |
Gjerdingenite-Fe | K2Fe2+(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2O | Mon. 2/m : B2/m |
Gjerdingenite-Na | K2Na(Nb,Ti)4(Si4O12)2(OH,O)4 · 5H2O | Mon. 2/m : B2/m |
Karupmøllerite-Ca | (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 7H2O | Mon. 2/m : B2/m |
Kuzmenkoite-Mn | K2Mn2+(Ti,Nb)4(Si4O12)2(OH,O)4 · 5-6H2O | Mon. |
Kuzmenkoite-Zn | K2Zn(Ti,Nb)4(Si4O12)2(OH,O)4 · 6-8H2O | Mon. m : Bm |
Lepkhenelmite-Zn | (Ba,K)2Zn(Ti,Nb)4(Si4O12)2(O,OH)4 · 7H2O | Mon. m : Bm |
Common Associates
Associated Minerals Based on Photo Data:
1 photo of Gjerdingenite-Mn associated with Gjerdingenite-Fe | K2Fe2+(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2O |
Related Minerals - Nickel-Strunz Grouping
9.CE.05 | Papagoite | CaCu[H3AlSi2O9] | Mon. |
9.CE.10 | Verplanckite | Ba2(Mn,Fe,Ti)Si2O6(O,OH,Cl,F)2 · 3H2O or near | Hex. |
9.CE.15 | Baotite | Ba4Ti8Si4O28Cl | Tet. 4/m : I41/a |
9.CE.20 | Nagashimalite | Ba4(V,Ti)4B2Si8O27(O,OH)2Cl | Orth. mmm (2/m 2/m 2/m) : Pmmn |
9.CE.20 | Taramellite | Ba4(Fe3+,Ti,Fe2+,Mg)4(B2Si8O27)O2Clx | Orth. mmm (2/m 2/m 2/m) : Pmmn |
9.CE.20 | Titantaramellite | Ba4(Ti,Fe3+,Fe2+,Mg)4(B2Si8O27)O2Clx | Orth. |
9.CE.25 | Bario-orthojoaquinite | (Ba,Sr)4Fe2Ti2[Si4O12]2O2 · H2O | Orth. |
9.CE.25 | Byelorussite-(Ce) | NaBa2Ce2MnTi2[Si4O12]2O2(F,OH) · H2O | Orth. mm2 : Ama2 |
9.CE.25 | Joaquinite-(Ce) | NaBa2Ce2FeTi2[Si4O12]2O2(OH,F) · H2O | Mon. 2 : B2 |
9.CE.25 | Orthojoaquinite-(Ce) | NaBa2Ce2FeTi2[Si4O12]2O2(O,OH) · H2O | Orth. |
9.CE.25 | Strontiojoaquinite | Sr2Ba2(Na,Fe)2Ti2[Si4O12]2O2(O,OH)2 · H2O | Mon. |
9.CE.25 | Strontio-orthojoaquinite | (Na,Fe)2Sr2Ba2Ti2[Si4O12]2O2(O,OH)2 · H2O | Orth. |
9.CE.25 | Orthojoaquinite-(La) | NaBa2La2Fe2+Ti2[Si4O12]2O2(O,OH) · H2O | Orth. |
9.CE.30e | Labuntsovite-Mn | Na4K4(Ba,K)2Mn2+(Ti,Nb)8(Si4O12)4(O,OH)8 · 10-12H2O | Mon. 2/m : B2/m |
9.CE.30a | Nenadkevichite | (Na,◻)8Nb4(Si4O12)2(O,OH)4 · 8H2O | Orth. mmm (2/m 2/m 2/m) : Pbam |
9.CE.30d | Lemmleinite-K | K2(Ti,Nb)2(Si4O12)(OH,O)2 · 4H2O | Orth. |
9.CE.30a | Korobitsynite | Na2(Ti,Nb)2(Si4O12)(OH,O)2 · 3-4H2O | Orth. mmm (2/m 2/m 2/m) : Pbam |
9.CE.30c | Kuzmenkoite-Mn | K2Mn2+(Ti,Nb)4(Si4O12)2(OH,O)4 · 5-6H2O | Mon. |
9.CE.30b | Vuoriyarvite-K | K2(Nb,Ti)2(Si4O12)(O,OH)2 · 4H2O | Mon. |
9.CE.30b | Tsepinite-Na | Na2(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2O | Mon. |
9.CE.30c | Karupmøllerite-Ca | (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 7H2O | Mon. 2/m : B2/m |
9.CE.30e | Labuntsovite-Mg | Na4K4(Ba,K)2Mg(Ti,Nb)8(Si4O12)4(O,OH)8 · 10H2O | Mon. |
9.CE.30e | Labuntsovite-Fe | Na4K4(Ba,K)2Fe2+(Ti,Nb)8(Si4O12)4(O,OH)8 · 10H2O | Mon. |
9.CE.30d | Lemmleinite-Ba | Na2K2Ba(Ti,Nb)4(Si4O12)2(O,OH)4 · 5H2O | Mon. 2/m : B2/m |
9.CE.30c | Gjerdingenite-Fe | K2Fe2+(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2O | Mon. 2/m : B2/m |
9.CE.30h | Neskevaaraite-Fe | K3Na2Fe2+(Ti,Nb)4(Si4O12)2(O,OH)4 · 5-6 H2O | Mon. m : Bm |
9.CE.30b | Tsepinite-K | K2(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2O | Mon. 2/m : B2/m |
9.CE.30b | Paratsepinite-Ba | Ba4(Ti,Nb)8(Si4O12)4(OH,O)8 · 8H2O | Mon. 2/m : B2/m |
9.CE.30b | Tsepinite-Ca | Ca(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2O | Mon. 2/m : B2/m |
9.CE.30h | Alsakharovite-Zn | NaSrKZn(Ti,Nb)4(Si4O12)2(O,OH)4 · 7H2O | Mon. m : Bm |
9.CE.30c | Lepkhenelmite-Zn | (Ba,K)2Zn(Ti,Nb)4(Si4O12)2(O,OH)4 · 7H2O | Mon. m : Bm |
9.CE.30b | Tsepinite-Sr | Sr(Ti,Nb)2(Si4O12)(OH,O)2 · 3H2O | Mon. m : Bm |
9.CE.30b | Paratsepinite-Na | (Na,Sr,K,Ca)7(Ti,Nb)8(Si4O12)4(O,OH)8 · nH2O n ~ 8 | Mon. 2/m : B2/m |
9.CE.30f | Paralabuntsovite-Mg | Na8K8Mg4Ti16(Si4O12)8(OH,O)16 · 20-24H2O | Mon. 2/m |
9.CE.30c | Gjerdingenite-Ca | K2Ca(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2O | Mon. 2/m : B2/m |
9.CE.30c | Gjerdingenite-Na | K2Na(Nb,Ti)4(Si4O12)2(OH,O)4 · 5H2O | Mon. 2/m : B2/m |
9.CE.30h | Gutkovaite-Mn | K2CaMn(Ti,Nb)4(Si4O12)2(O,OH)4 · 5H2O | Mon. |
9.CE.30c | Kuzmenkoite-Zn | K2Zn(Ti,Nb)4(Si4O12)2(OH,O)4 · 6-8H2O | Mon. m : Bm |
9.CE.30g | Organovaite-Mn | K2Mn(Nb,Ti)4(Si4O12)2(O,OH)4 · 5-7H2O | Mon. 2/m : B2/m |
9.CE.30g | Organovaite-Zn | K2Zn(Nb,Ti)4(Si4O12)2(O,OH)4 · 6H2O | Mon. 2/m : B2/m |
9.CE.30g | Parakuzmenkoite-Fe | (K,Ba)4Fe(Ti,Nb)8(Si4O12)4(O,OH)8 · 14H2O | Mon. 2/m : B2/m |
9.CE.30c | Burovaite-Ca | (Na,K)4Ca2(Ti,Nb)8(Si4O12)4(OH,O)8 · 12H2O | Mon. 2/m : B2/m |
9.CE.45 | Komarovite | (Ca,Mn)(Nb,Ti)2[Si2O7](O,F)3 · 3.5H2O | Orth. |
9.CE.45 | Natrokomarovite | (Na,Ca,H)2Nb2Si2O10(OH,F)2 · H2O | Orth. |
Fluorescence of Gjerdingenite-Mn
None
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.
References for Gjerdingenite-Mn
Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Eur. J. Miner. 16:979-987 (2004)
Internet Links for Gjerdingenite-Mn
mindat.org URL:
https://www.mindat.org/min-26442.html
Please feel free to link to this page.
Please feel free to link to this page.
External Links:
Mineral Dealers:
Localities for Gjerdingenite-Mn
Locality List




All localities listed without proper references should be considered as questionable.
Norway (TL) | |
| Raade G., Chukanov N.V., Kolitsch U., Möckel S., Zadov, A.E., Pekov I.V. (2004): Gjerdingenite-Mn from Norway - a new mineral species in the labuntsovite group: descriptive data and crystal structure. European Journal of Mineralogy, 16, 979-987. |
Quick NavTopAbout Gjerdingenite-MnClassification Physical Properties Optical Data Chemical Properties Crystallography Crystal StructureGeological EnvironmentType Occurrence SynonymsOther LanguagesRelationshipsCommon AssociatesNickel-StrunzFluorescence Other InformationReferences Internet Links Localities Locality List
Gjerdingselva, Lunner, Viken, Norway