Natronambulite Mineral Data + Say NATRONAMBULITE


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General Natronambulite Information

Help on Chemical  Formula: Chemical Formula: (Na,Li)Mn++4[Si5O14(OH)]
Help on Composition: Composition: Molecular Weight = 619.35 gm
   Sodium      2.60 %  Na    3.50 % Na2O
   Lithium     0.34 %  Li    0.72 % Li2O
   Manganese  35.48 %  Mn   45.81 % MnO
   Silicon    22.67 %  Si   48.51 % SiO2
   Hydrogen    0.16 %  H     1.45 % H2O
   Oxygen     38.75 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Li0.3Na0.7Mn2+4Si5O14(OH)
Help on Environment: Environment: Found in the mine dump.
Help on IMA Status: IMA Status: Approved IMA 1985
Help on Locality: Locality: Matsumaezawa ore body, Tahohata mine, Ivate Prefecture, Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its composition and for Matsuo Nambu (1917-), mineralogist, Tohoko University, Japan.
Help on Synonym: Synonym: ICSD 855
  PDF 39-332
 

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Natronambulite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.6478:1:0.5727
Help on Cell Dimensions: Cell Dimensions: a = 7.62, b = 11.762, c = 6.737, Z = 2; alpha = 92.81°, beta = 94.55°, gamma = 106.87° V = 575.32 Den(Calc)= 3.58
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.559(1), 7.13(0.47), 3.078(0.45),
 

Physical Properties of Natronambulite

Help on Cleavage: Cleavage: [100] Perfect, [001] Perfect
Help on Color: Color: Pink orange.
Help on Density: Density: 3.51
Help on Diaphaniety: Diaphaniety: Transparent to Translucent
Help on Hardness: Hardness: 5.5-6 - Knife Blade-Orthoclase
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: very pale orange
 

Optical Properties of Natronambulite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.025 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1998,KPDmeas= 0.2038,KC= 0.205
Help on Optical Data: Optical Data: Biaxial (+), a=1.706, b=1.71, g=1.73, bire=0.0240, 2V(Calc)=50, 2V(Meas)=45.
 

Calculated Properties of Natronambulite

Help on Electron Density: Electron Density:

relectron=3.40 gm/cc
note: rNatronambulite =3.51 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.01102
Boson Index = 0.98898
Help on Photoelectric: Photoelectric:

PENatronambulite = 9.99 barns/electron
U=PENatronambulite x relectron= 33.92 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Natronambulite is Not Radioactive

 

Natronambulite Classification

Help on  Dana Class: Dana Class: 65.4.1.5 (65)Inosilicate Single-Width Unbranched Chains, W=1
  (65.4)with chains P=5
  (65.4.1)Rhodonite group
 
65.4.1.1 Rhodonite (Mn,Fe,Mg,Ca)SiO3 P1 1
 
65.4.1.2 Babingtonite Ca2(Fe,Mn)FeSi5O14(OH) P1 1
 
65.4.1.3 Manganbabingtonite Ca2(Mn,Fe)FeSi5O14(OH) P1 1
 
65.4.1.4 Nambulite (Li,Na)Mn4[Si5O14(OH)] P1 1
 
65.4.1.5 Natronambulite (Na,Li)Mn4[Si5O14(OH)] P1 1
 
65.4.1.6 Marsturite NaCaMn3[Si5O14(OH)] P1,P 1 Tri
 
65.4.1.7 Lithiomarsturite LiCa2Mn2HSi5O15 P1 1
 
65.4.1.8 Scandiobabingtonite! Ca2(Fe,Mn)ScSi5O14(OH) P1 1
Help on  Strunz Class: Strunz Class: VIII/F.27-60 VIII - Silicates
  VIII/F - Inosilicates (chain and band) Five chains [Si5O15]10-
  VIII/F.27 - Rhodonite - Inesite series
 
VIII/F.27-10 Rhodonite (Mn,Fe,Mg,Ca)SiO3 P1 1
 
VIII/F.27-20 Babingtonite Ca2(Fe,Mn)FeSi5O14(OH) P1 1
 
VIII/F.27-30 Manganbabingtonite Ca2(Mn,Fe)FeSi5O14(OH) P1 1
 
VIII/F.27-35 Scandiobabingtonite! Ca2(Fe,Mn)ScSi5O14(OH) P1 1
 
VIII/F.27-40 Santaclaraite CaMn4Si5O14(OH)2·(H2O) P1 1
 
VIII/F.27-50 Nambulite (Li,Na)Mn4[Si5O14(OH)] P1 1
 
VIII/F.27-60 Natronambulite (Na,Li)Mn4[Si5O14(OH)] P1 1
 
VIII/F.27-70 Lithiomarsturite LiCa2Mn2HSi5O15 P1 1
 
VIII/F.27-80 Marsturite NaCaMn3[Si5O14(OH)] P1,P 1 Tri
 
VIII/F.27-90 Inesite Ca2Mn7Si10O28(OH)2·5(H2O) P1 1
 

Other Natronambulite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Natronambulite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (MinSocAm) 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 -École des Mines de Paris

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Natronambulite

(Na,Li)Mn++4[Si5O14(OH)]
Dana No: 65.4.1.5 Strunz No: VIII/F.27-60
Locality:

 

Notes:

 

 
   
 
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