Mineralogy Database

Taneyamalite Mineral Data

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General Taneyamalite Information

Help on Chemical  Formula: Chemical Formula: (Na,Ca)(Mn++,Mg)12[(Si,Al)6O17]2(O,OH)10
Help on Composition: Composition: Molecular Weight = 1,697.49 gm
   Sodium      1.22 %  Na    1.64 % Na2O
   Calcium     0.24 %  Ca    0.33 % CaO
   Magnesium   1.58 %  Mg    2.61 % MgO
   Manganese  18.77 %  Mn   24.24 % MnO
   Aluminum    1.11 %  Al    2.10 % Al2O3
   Iron       15.79 %  Fe   12.27 % FeO /  8.94 % Fe2O3
   Silicon    19.03 %  Si   40.71 % SiO2
   Hydrogen    0.80 %  H     7.11 % H2O
   Oxygen     41.47 %  O
             ______        ______ 
             100.00 %       99.95 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na0.9Ca0.1Mn2+5.8Fe2+2.9Fe3+1.9Mg1.1Al0.3Si11.5Al0.4O30.6(OH)13.4
Help on Environment: Environment: In cracks in ferruginous chert, mafic rocks and limestones subjected to blueschist facies metamorphism.
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: Taneyama mine, Kumamoto Prefecture and Iwaizama mine, Saitama Prefecture, Honshu, Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Taneyamalite + Pronunciation Say TANEYAMALITE

Taneyamalite Image

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Comments: Dark brown silky fibrous taneyamalite vein in manganese ore.
Location: Taneyama Mine, Toyo, Kumamoto, Japan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Taneyamalite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.0384:1:0.9658
Help on Cell Dimensions: Cell Dimensions: a = 10.198, b = 9.82, c = 9.485, Z = 1; alpha = 90.5°, beta = 70.53°, gamma = 108.57° V = 848.89 Den(Calc)= 3.32
Help on Crystal System: Crystal System: Triclinic - Pedial H-M Symbol (1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.273(1), 9.29(0.8), 4.62(0.5),

Physical Properties of Taneyamalite

Help on Cleavage: Cleavage: {010} Perfect, {100} Fair
Help on Color: Color: Greenish yellow, Grayish yellow.
Help on Density: Density: 3.3
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Flakes - Flat, thin crystals or aggregates.
Help on Hardness: Hardness: 5-6 - Between Apatite and Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light yellow

Optical Properties of Taneyamalite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.056 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.067 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2063,KPDmeas= 0.2088,KC= 0.2212
Ncalc = 1.73 - 1.74
Help on Optical Data: Optical Data: Biaxial (-), a=1.646-1.697, b=1.664-1.72, g=1.676-1.732, bire=0.0300-0.0350, 2V(Calc)=70-76, 2V(Meas)=70.
Help on Pleochroism (x): Pleochroism (x): nearly colorless or pale golden yellow.
Help on Pleochroism (y): Pleochroism (y): nearly colorless or yellowish brown.
Help on Pleochroism (z): Pleochroism (z): pale yellow or dark brown.

Calculated Properties of Taneyamalite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.23 gm/cc
note: Specific Gravity of Taneyamalite =3.30 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PETaneyamalite = 10.31 barns/electron
U=PETaneyamalite x rElectron Density= 33.29 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Taneyamalite is Not Radioactive

Taneyamalite Classification

Help on  Dana Class: Dana Class: (69)Inosilicate Chains with Side Branches or Loops
  (69.02)with P>2
  (69.02.03)Howieite group Howieite Na(Fe,Mn)10(Fe,Al)2Si12O31(OH)13 P1,P1 Tri Taneyamalite (Na,Ca)(Mn,Mg)12[(Si,Al)6O17]2(O,OH)10 P1 1 Deerite (Fe,Mn)6(Fe,Al)3Si6O20(OH)5 P 21/a 2/m
Help on  Strunz Class: Strunz Class: 09.DH.65 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DH -Inosilicates with 4-periodic single chains, Si4O12
09.DH.65 Howieite Na(Fe,Mn)10(Fe,Al)2Si12O31(OH)13 P1,P1 Tri
09.DH.65 Taneyamalite (Na,Ca)(Mn,Mg)12[(Si,Al)6O17]2(O,OH)10 P1 1

Other Taneyamalite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(AntBidBlaNic2) OPTIC PROP.(AntBidBlaNic2)
Help on See Also: See Also: Links to other databases for Taneyamalite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 09.DH.65





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