Punkaruaivite Mineral Data (original) (raw)
General Punkaruaivite Information
Chemical Formula:
Li{Ti2(OH)2[Si4O11(OH)]}•H2O
Composition:
Molecular Weight = 460.07 gm
Lithium 1.51 % Li 3.25 % Li2O
Titanium 20.81 % Ti 34.72 % TiO2
Silicon 24.42 % Si 52.24 % SiO2
Hydrogen 1.10 % H 9.79 % H2O
Oxygen 52.16 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
LiTi2(OH)2Si4O11(OH)•(H2O)
Environment:
Related to lintisite and kukisvumite. Na-free analog of lintisite.
IMA Status:
Proposed IMA 2008 (Dana # Added)
Locality:
Mt. Punkaruaiv, Lovozero massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Name Origin:
Named for the locality.
Synonym:
IMA2008-018
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Punkaruaivite Crystallography
Axial Ratios:
a:b:c =3.0491:1:0.5988
Cell Dimensions:
a = 26.68, b = 8.75, c = 5.24, Z = 4; beta = 91.2° V = 1,223.01 Den(Calc)= 2.50
Crystal System:
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c
X Ray Diffraction:
By Intensity(I/Io): 13.3(1), 3.5(0.8), 6.23(0.8),2.81(0.7), 3.01(0.7), 4.38(0.6), 2.7(0.4), 4.16(0.4),
Optical Properties of Punkaruaivite
Optical Data:
NCalc= 1.72 - from Gladstone-Dale relationship (KC = 0.2884) where Ncalc=Dcalc*KC+1
Calculated Properties of Punkaruaivite
Electron Density:
Bulk Density (Electron Density)=2.48 gm/cc
note: Specific Gravity of Punkaruaivite =2.50 gm/cc.
Fermion Index:
Fermion Index = 0.03
Boson Index = 0.97
Photoelectric:
PEPunkaruaivite = 4.34 barns/electron
U=PEPunkaruaivite x rElectron Density= 10.75 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Punkaruaivite is Not Radioactive
Punkaruaivite Classification
Dana Class:
65.01.06.05 (65)Inosilicate Single-Width Unbranched Chains, W=1
(65.01)with chains P=2
(65.01.06)Lorenzenite group
65.01.06.01 Lorenzenite Na2Ti2Si2O9 P bcn 2/m 2/m 2/m
65.01.06.02 Kukisvumite Na6ZnTi4Si8O28•4(H2O) Pccn 2/m 2/m 2/m
65.01.06.03 Lintisite Na3LiTi2Si4O14•2(H2O) C 2/c 2/m
65.01.06.04 Manganokukisvumite! Na6MnTi4Si8O28•4(H2O) Pccn 2/m 2/m 2/m
65.01.06.05 Punkaruaivite! Li{Ti2(OH)2[Si4O11(OH)]}•H2O C 2/c 2/m
Strunz Class:
09.DX.00 09 - SILICATES (Germanates)
09.D - Unclassified Strunz Inosilicates
09.DX -Unknown
09.DX.00 Hypersthene? (Mg,Fe)2Si2O6 2/m 2/m 2/m
09.DX.00 Plumalsite* Pb4Al2(SiO3)7(?) Unk Ortho
09.DX.00 IMA2008-070 NaLi2(Fe2Al2Li)(Si6Al2)O22F2 C 2/m 2/m
09.DX.00 IMA2007-015 K(CaNa)(Fe3Al2)(Si6Al2)O22(OH)2 C 2/m 2/m
09.DX.00 Tanohataite! LiMn2Si3O8(OH) P1 1
09.DX.00 Punkaruaivite! Li{Ti2(OH)2[Si4O11(OH)]}•H2O C 2/c 2/m
09.DX.00 Yegorovite! Na4[Si2O4(OH)2]2•7H2O P 21/c 2/m
09.DX.00 Kushiroite CaAl2SiO6 C 2/c 2/m
09.DX.00 Grossmanite CaTiAlSiO6 C 2/m 2/m
09.DX.00 IMA2009-009 KNa2Li(Mg,Fe)2Ti2Si8O24 C 2/m 2/m
09.DX.00 IMA2009-010 [Ba6(PO4)2(CO3)][Fe7(OH)4Fe2O2(SiO3)8] P1 1
09.DX.00 IMA2009-012 NaNa2(Mg2Al2Li)Si8O22F2 C 2/m 2/m
Other Punkaruaivite Information
See Also:
Links to other databases for Punkaruaivite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info
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Print or Cut-and-Paste your Punkaruaivite Specimen Label here :
Punkaruaivite
Li{Ti2(OH)2[Si4O11(OH)]}•H2O
Dana No: 65.01.06.05 Strunz No: 09.DX.00
Locality:
Notes: