Veblenite (original) (raw)
A valid IMA mineral species
Formula:
KNa(Fe2+5Fe3+4Mn7)Nb4(Si2O7)2(Si8O22)2O6(OH)10(H2O)3
Specific Gravity:
3.046 (Calculated)
Name:
In honour of David R. Veblen (b. 1947, Minneapolis, Minnesota, USA), professor at Johns Hopkins University, in recognition of his outstanding contributions to the fields of mineralogy and crystallography. He has established himself as one of the foremost experts in the use of TEM in geology and has made a significant contribution to the polysomatic approach in mineralogy.
This page provides mineralogical data about Veblenite.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:41133:6
162a4390-0c1d-4486-805d-61f58b3ed635
IMA Classification of VebleniteHide
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IMA Formula:
K2◻2Na(Fe2+5Fe3+4Mn7◻)Nb3Ti(Si2O7)2(Si8O22)2O6(OH)10(H2O)3
Type description reference:
Cámara, F., Sokolova, E., Hawthorne, F. C., Rowe, R., Grice, J. D., Tait, K. T. (2013) Veblenite, K2☐2Na(Fe2+5Fe3+4Mn2+7☐)Nb3Ti(Si2O7)2(Si8O22)2O6(OH)10(H2O)3, a new mineral from Seal Lake, Newfoundland and Labrador: mineral description, crystal structure, and a new veblenite Si8O22ribbon. Mineralogical Magazine, 77 (7) 2955-2974 doi:10.1180/minmag.2013.077.7.06
Classification of VebleniteHide
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9.EH.35
9 : SILICATES (Germanates)
E : Phyllosilicates
H : Transitional structures between phyllosilicate and other silicate units
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Veb | 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 VebleniteHide
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Density:
3.046 g/cm3 (Calculated)
Optical Data of VebleniteHide
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RI values:
_n_α = 1.676(2) _n_β = 1.688(2) _n_γ = 1.692(2)
2V:
Measured: 65.3° (1), Calculated: 59.6°
δ = 0.016
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Comments:
X = black, Y = black, Z = orange-brown
Chemistry of VebleniteHide
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Mindat Formula:
KNa(Fe2+5Fe3+4Mn7)Nb4(Si2O7)2(Si8O22)2O6(OH)10(H2O)3
Crystallography of VebleniteHide
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Class (H-M):
1 - Pinacoidal
Cell Parameters:
a = 5.3761(3) Å, b = 27.5062(11) Å, c = 18.6972(9) Å
α = 140.301(3)°, β = 93.033(3)°, γ = 95.664(3)°
Ratio:
a:b:c = 0.195 : 1 : 0.68
Unit Cell V:
1,720.96 ų (Calculated from Unit Cell)
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0019991 | Veblenite | Camara F, Sokolova E, Hawthorne F C, Rowe R, Grice J D, Tait K T (2013) Veblenite, K2[_]2Na(Fe2+5Fe3+4Mn2+7[_])Nb3Ti(Si2O7)2(Si8O22)2O6(OH)10(H2O)3, a new mineral from Seal Lake, Newfoundland and Labrador: mineral description, crystal structure, and a new veblenite Si8O22 ribbon Mineralogical Magazine 77 2955-2974 | 2013 | Seal Lake, Newfoundland, Canada | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 18.204 Å | (22) |
| 16.894 Å | (100) |
| 11.661 Å | (8) |
| 4.404 Å | (3) |
| 4.271 Å | (9) |
| 4.056 Å | (3) |
| 3.891 Å | (2) |
| 2.721 Å | (3) |
Geological EnvironmentHide
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Type Occurrence of VebleniteHide
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General Appearance of Type Material:
the laths are hundreds of microns long and no more than tens of microns thick and wide
Place of Conservation of Type Material:
The holotype specimen of veblenite (the same as that of niobophyllite) is under catalogue number #M26148 at the Royal Ontario Museum, 100 Queen’s Park, Toronto, Ontario M5S 2C6.
Geological Setting of Type Material:
The area has been interpreted in terms of a series of interbedded volcanic rocks and gneisses intruded by an alkaline syenite
Associated Minerals at Type Locality:
Reference:
Cámara, F., Sokolova, E., Hawthorne, F.C., Rowe, R., Grice, J.D., Tait, K.T. (2013) Veblenite,
K2[]2Na(Fe#2+#5Fe#3+#4Mn#2+#7[])Nb3Ti(Si2O7)2(Si8O22)2O6(OH)10(H2O)3
, a new mineral from Seal Lake, Newfoundland and Labrador: mineral description, crystal structure, and a new veblenite Si8O22 ribbon. Mineralogical Magazine: 77(7): 2955-2974.
Synonyms of VebleniteHide
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Related Minerals - Strunz-mindat GroupingHide
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| 9.EH.05 | Manganoneptunite | KNa2Li(Mn2+)2Ti2[Si4O12]2 | Mon. m : B b |
|---|---|---|---|
| 9.EH.05 | Neptunite | KNa2Li(Fe2+)2Ti2[Si4O12]2 | Mon. m : B b |
| 9.EH.05 | Watatsumiite | KNa2Li(Mn2+)2V4+2[Si4O12]2 | Mon. m : B b |
| 9.EH.05 | Magnesioneptunite | KNa2Li(Mg)2Ti2[Si4O12]2 | Mon. 2/m : _B_2/b |
| 9.EH.05 | Rotherkopfite | KNa2Fe2+(Fe2+)2(Ti1.5Fe2+0.5)[Si4O12]2 | Mon. 2/m : _B_2/b |
| 9.EH.10 | Grumantite | Na(HSi2O5) · H2O | Orth. m _m_2 : F d _d_2 |
| 9.EH.15 | Sarcolite | Na4Ca12Al8Si12O46(SiO4,PO4)(OH,H2O)4(CO3,Cl) | Tet. 4/m : _I_4/m |
| 9.EH.20 | Ussingite | Na2AlSi3O8OH | Tric. 1 : _P_1 |
| 9.EH.25 | Leifite | (Na,H2O)Na6[Be2Al2(Al,Si)Si15O39]F2 | Trig. 3_m_ : _P_3_m_1 |
| 9.EH.25 | Telyushenkoite | (Cs,Na,K)Na6[Be2Al3Si15O39]F2 | Trig. 3_m_ _(_32/m ) : P_31_m |
| 9.EH.25 | Eirikite | KNa6Be2(Si15Al3)O39F2 | Trig. 3_m_ _(_32/m ) : _P_3_m_1 |
| 9.EH.30 | Nafertisite | Na3Fe2+10Ti2(Si6O17)2O2(OH)6F(H2O)2 | Mon. 2/m |
Fluorescence of VebleniteHide
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Other InformationHide
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IR Spectrum:
The infrared spectrum of the mineral contains the following bands (cm-1): 453, 531, 550, 654 and 958, with shoulders at 1070, 1031 and 908.
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 VebleniteHide
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References for VebleniteHide
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Reference List:
Cámara, F., Sokolova, E., Hawthorne, F. C., Rowe, R., Grice, J. D., Tait, K. T. (2013) Veblenite, K2☐2Na(Fe2+5Fe3+4Mn2+7☐)Nb3Ti(Si2O7)2(Si8O22)2O6(OH)10(H2O)3, a new mineral from Seal Lake, Newfoundland and Labrador: mineral description, crystal structure, and a new veblenite Si8O22ribbon. Mineralogical Magazine, 77 (7) 2955-2974 doi:10.1180/minmag.2013.077.7.06
Localities for VebleniteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
| Canada (TL) | |
|---|---|
| Newfoundland and Labrador Labrador Seal Lake alkaline complex (Letitia Lake) ⓘ Mann 2 (Ten Mile Lake) (TL) | GSC database locality No. 4101 +2 other references |