Mineralogy Database

Manaksite Mineral Data

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General Manaksite Information

Help on Chemical  Formula: Chemical Formula: KNaMn++Si4O10
Help on Composition: Composition: Molecular Weight = 389.36 gm
   Potassium  10.04 %  K    12.10 % K2O
   Sodium      5.90 %  Na    7.96 % Na2O
   Manganese  14.11 %  Mn   18.22 % MnO
   Silicon    28.85 %  Si   61.73 % SiO2
   Oxygen     41.09 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KNaMn2+Si4O10
Help on Environment: Environment: In ultra-agpaitic pegmatites in a differentiated alkalic massif.
Help on IMA Status: IMA Status: Approved IMA 1992
Help on Locality: Locality: On Mt. Alluaiv, Lovozero massif, Kola Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For MAnganese; sodium, NAtrium; potassium, Kalium; and SIlicon in its composition.
Help on Name Pronunciation: Name Pronunciation: Manaksite + Pronunciation Say MANAKSITE
Help on Synonym: Synonym: IMA1990-024

Manaksite Image

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  Manaksite   Bario-olgite

Comments: Pale brown massive manaksite associated with grayish-green bario-olgite, purple ussingite and colorless serandite.
Location: Palitra pegmatite, Kedykverpakhk Mountain, Lovozero massif, Kola Peninsula, Russia. Scale: See Image.
© Rruff Database

Manaksite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8508:1:1.2175
Help on Cell Dimensions: Cell Dimensions: a = 6.993, b = 8.219, c = 10.007, Z = 2; alpha = 105.11°, beta = 100.76°, gamma = 114.79° V = 495.24 Den(Calc)= 2.61
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.45(1), 3.26(0.9), 3.05(0.8),

Physical Properties of Manaksite

Help on Cleavage: Cleavage: {001} Perfect, {010} Perfect
Help on Color: Color: Colorless, Creamy white, Rosy.
Help on Density: Density: 2.73
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 5 - Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Manaksite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.009 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.009 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2012,KPDmeas= 0.2012,KC= 0.2031
Ncalc = 1.55
Help on Optical Data: Optical Data: Biaxial (-), a=1.54, b=1.551, g=1.557, bire=0.0170

Calculated Properties of Manaksite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.68 gm/cc
note: Specific Gravity of Manaksite =2.73 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEManaksite = 5.77 barns/electron
U=PEManaksite x relectron= 15.46 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 142.16 (Gamma Ray American Petroleum Institute Units)
Concentration of Manaksite per GRapi unit = 0.70 (%)

Estimated Radioactivity from Manaksite - barely detectable


Manaksite Classification

Help on  Dana Class: Dana Class: (70)Inosilicate Column or Tube Structures
  (70.01)with columnar silicate units
  (70.01.01)Litidionite group Litidionite KNaCuSi4O10 P1 1 Fenaksite (K,Na,Ca)4(Fe,Fe,Mn)2Si8O20(OH,F) P1 1 Manaksite KNaMnSi4O10 P1 1 Agrellite NaCa2Si4O10F P1 1
Help on  Strunz Class: Strunz Class: 09.DG.70 09 - SILICATES (Germanates)
  09.D - Inosilicates* Structural terminology according to Liebau (1985)
  09.DG -Inosilicates with 3-periodic single and multiple chains
09.DG.70 Fenaksite (K,Na,Ca)4(Fe,Fe,Mn)2Si8O20(OH,F) P1 1
09.DG.70 Manaksite KNaMnSi4O10 P1 1

Other Manaksite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(37th List of New Min.,Min. Mag.,1996) OPTIC PROP.(37th List of New Min.,Min. Mag.,19)
Help on See Also: See Also: Links to other databases for Manaksite :
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.DG.70





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