Gjerdingenite-Mn  Mineral Data

Gjerdingenite-Mn Mineral Data

Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images Share
      News Help About

Advertisment
For more than thirty (30) years, Excalibur Mineral Corp. has been providing private collectors, researchers, major universities and museums throughout the world with reliably identified, rare and unusual mineral samples for science an
McDougall Minerals sells high-quality mineral specimens from all over the world to collectors of all levels, from beginners to connoisseurs
Weinrich Minerals, A Dealer in Fine Mineral Specimens - Since 1989. We buy collections and single high quality specimens.
John Betts - Fine Minerals, New York. Dealers of Fine Minerals and Natural Crystal Clusters since 1989. We buy rock collections, we buy gem collections, we buy mineral collections.

General Gjerdingenite-Mn Information

Help on Chemical  Formula: Chemical Formula: (K,Na)2(Mn,Fe)(Nb,Ti)4(Si4O12)2(O,OH)4•6(H2O)
Help on Composition: Composition: Molecular Weight = 2,494.47 gm
   Potassium   4.81 %  K     5.80 % K2O
   Barium      0.61 %  Ba    0.68 % BaO
   Sodium      1.07 %  Na    1.44 % Na2O
   Magnesium   0.03 %  Mg    0.05 % MgO
   Titanium    4.20 %  Ti    7.01 % TiO2
   Manganese   2.00 %  Mn    2.59 % MnO
   Niobium    22.05 %  Nb   31.54 % Nb2O5
   Aluminum    0.10 %  Al    0.18 % Al2O3
   Zinc        0.42 %  Zn    0.52 % ZnO
   Iron        1.57 %  Fe    2.02 % FeO
   Silicon    17.91 %  Si   38.32 % SiO2
   Hydrogen    1.10 %  H     9.85 % H2O
   Oxygen     44.13 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K3.07Na1.16Ba0.11Mn2+0.91Fe2+0.7Zn0.16Mg0.03Nb5.92Ti2.19Si15.91Al0.09O48O6.32(OH)1.68 (H2O)12.8
Help on Environment: Environment: Miarolitic cavities of a sodic granite ('ekerite') . Mn-dominant analogue of gjerdingenite-Fe, the Ti analogue of kuzmenkoite-Mn and a dimorph of organovaite-Mn. Labuntsovite group
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: Gjerdingselva, Lunner, Oppland, Oslo Region, Norway. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as the Mn-dominant analogue of gjerdingenite-Fe.
Help on Synonym: Synonym: IMA2003-015
 

Gjerdingenite-Mn Image

Click Here for Larger Gjerdingenite-Mn Image in a New Browser Window Images:
Click Here for Larger Gjerdingenite-Mn Image

Gjerdingenite-Mn   Elpidite

Comments: Golden brown crystal of gjerdingenite-Mn, in white elpidite.
Location: Gjerdingselva (Gjerdingen), Nordmarka, Lunner, Oppland, Norway. Scale: Crystal Size 0.02 cm.
© Jeff Weissman / Photographic Guide to Mineral Species

Gjerdingenite-Mn Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0431:1:0.5623
Help on Cell Dimensions: Cell Dimensions: a = 14.563, b = 13.961, c = 7.851, Z = 2; beta = 117.62° V = 1,414.32 Den(Calc)= 5.86
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 6.96(1)(020,001), 3.22(0.9)(421,400,402), 3.1(0.8)(041,022),4.94(0.8)(021), 2.51(0.4)(441,401,403,06.4(0.2),
Click Here for Large Gjerdingenite-Mn Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate

Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
Help on Above


Raade G , Chukanov N V , Kolitsch U , Mockel S , Zadov A E , Pekov I V , European Journal of Mineralogy , 16 (2004) p.979-987, Gjerdingenite-Mn from Norway - a new mineral species, in the labuntsovite group: descriptive data and crystal structure, Locality: Gjerdingselva, Lunner, Oppland, Oslo Region, Norway

 

Physical Properties of Gjerdingenite-Mn

Help on Cleavage: Cleavage: None
Help on Color: Color: Orange yellow, Brownish yellow.
Help on Diaphaneity: Diaphaneity: Translucent to transparent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)
 

Optical Properties of Gjerdingenite-Mn

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.516 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1212,KC= 0.2505
Ncalc = 2.47
Help on Optical Data: Optical Data: Biaxial (+), a=1.67, b=1.685, g=1.775, bire=0.1050, 2V(Calc)=48, 2V(Meas)=52. Dispersion r < v weak.
 

Calculated Properties of Gjerdingenite-Mn

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.71 gm/cc
note: Specific Gravity of Gjerdingenite-Mn =5.86 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEGjerdingenite-Mn = 37.58 barns/electron
U=PEGjerdingenite-Mn x relectron= 214.68 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 67.68 (Gamma Ray American Petroleum Institute Units)
Concentration of Gjerdingenite-Mn per GRapi unit = 1.48 (%)

Estimated Radioactivity from Gjerdingenite-Mn - barely detectable

 

Gjerdingenite-Mn Classification

Help on  Dana Class: Dana Class: 60.01.03e.05 (60)Cyclosilicate Four-Membered Rings
  (60.01)as Titanosilicates
  (60.01.03e)Labuntsovite Group (Labuntsovite subgroup Monoclinic [C2/m])
 
60.01.03e.01 Labuntsovite-Mn! Na4K4(Ba,K)(Mn,Fe)1x(Ti,Nb)8[Si4O12]4(O,OH)8•n(H2O),n=10-12 I2/m 2/m
 
60.01.03e.02 Labuntsovite-Mg! Na4K4(Ba,K)(Mg,Fe)1xTi8(Si4O12)4(O,OH)8•10(H2O) C 2/m 2/m
 
60.01.03e.03 Labuntsovite-Fe! Na4K4(Ba,K)2(Fe,Mg,Mn)1xTi8(Si4O12)4(O,OH)8•10(H2O) C 2/m 2/m
 
60.01.03e.04 Paratsepinite-Na! (Na,Sr,K,Ca)7(Ti,Nb)8[Si4O12]4(O,OH)8•n(H2O)n~8 C 2/m 2/m
 
60.01.03e.05 Gjerdingenite-Mn! (K,Na)2(Mn,Fe)(Nb,Ti)4(Si4O12)2(O,OH)4•6(H2O) C 2/m 2/m
 
60.01.03e.06 Gjerdingenite-Fe! K2[(H2O)2(Fe,Mn)][(Nb,Ti)4(Si4O12)2(O,OH)4]•4(H2O) C 2/m 2/m
 
60.01.03e.07 Gjerdingenite-Ca! K2Ca(Nb,Ti)4(Si4O12)2(O,OH)4•6H2O C 2/m 2/m
 
60.01.03e.08 Gjerdingenite-Na! (K,Na)2Na(Nb,Ti)4(Si4O12)2(OH,O)4•5H2O C 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.CE.30c 09 - SILICATES (Germanates)
  09.C - Cyclosilicates
  09.CE -[Si4O12]8- 4-membered single rings (vierer-Einfachringe),
 
09.CE.30c Gjerdingenite-Mn! (K,Na)2(Mn,Fe)(Nb,Ti)4(Si4O12)2(O,OH)4•6(H2O) C 2/m 2/m
 
09.CE.30c Karupmollerite-Ca! (Na,Ca,K)2Ca(Nb,Ti)4(Si4O12)2(O,OH)4•7(H2O) C 2/m 2/m
 
09.CE.30c Kuzmenkoite-Zn! K2Zn(Ti,Nb)4(Si4O12)2(OH,O)4•6-8(H2O) Cm m
 
09.CE.30c Kuzmenkoite-Mn! (K,Na)2(Mn,Fe)(Ti,Nb)4[Si4O12]2(OH)4•5(H2O) C 2/m 2/m
 
09.CE.30c Gjerdingenite-Fe! K2[(H2O)2(Fe,Mn)][(Nb,Ti)4(Si4O12)2(O,OH)4]•4(H2O) C 2/m 2/m
 
09.CE.30c Lepkhenelmite-Zn! Ba2Zn(Ti,Nb)4(Si4O12)2(O,OH)4•7(H2O) Cm m
 
09.CE.30c Gjerdingenite-Ca! K2Ca(Nb,Ti)4(Si4O12)2(O,OH)4•6H2O C 2/m 2/m
 
09.CE.30c Gjerdingenite-Na! (K,Na)2Na(Nb,Ti)4(Si4O12)2(OH,O)4•5H2O C 2/m 2/m
 
09.CE.30c Burovaite-Ca! (K,Na)4Ca2(Ti,Nb)8[Si4O12]4(OH,O)8•12H2O C 2/m 2/m
 

Other Gjerdingenite-Mn Information

Help on References: References: NAME( EurJMin 16:979) PHYS. PROP.(EurJMin 16:979) OPTIC PROP.(EurJMin 16:979)
Help on See Also: See Also: Links to other databases for Gjerdingenite-Mn :
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

Search for Gjerdingenite-Mn using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Gjerdingenite-Mn :

A Bijoux Google Search for Gjerdingenite-Mn
Adam's Minerals Google Search for Gjerdingenite-Mn
Cape Minerals Google Search for Gjerdingenite-Mn
Dakota Matrix Minerals Google Search for Gjerdingenite-Mn
Excalibur Mineral Corp. Google Search for Gjerdingenite-Mn
Exceptional Minerals Google Search for Gjerdingenite-Mn
John Betts Fine Minerals Search for Gjerdingenite-Mn
McDougall Minerals Google Search for Gjerdingenite-Mn
Mineral News Website Link
Rock and Mineral Shows Google Search for Gjerdingenite-Mn
Weinrich Minerals, Inc. Google Search for Gjerdingenite-Mn

Ask about Gjerdingenite-Mn here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

Print or Cut-and-Paste your Gjerdingenite-Mn Specimen Label here :

Gjerdingenite-Mn

(K,Na)2(Mn,Fe)(Nb,Ti)4(Si4O12)2(O,OH)4•6(H2O)
Dana No: 60.01.03e.05 Strunz No: 09.CE.30c
Locality:

 

Notes: