Mineralogy Database

Kanemite Mineral Data

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General Kanemite Information

Help on Chemical  Formula: Chemical Formula: NaHSi2O5•3(H2O)
Help on Composition: Composition: Molecular Weight = 214.21 gm
   Sodium    10.73 %  Na   14.47 % Na2O
   Silicon   26.22 %  Si   56.10 % SiO2
   Hydrogen   3.29 %  H    29.44 % H2O
   Oxygen    59.75 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaHSi2O5•3(H2O)
Help on Environment: Environment: In evaporites in an interdunary depression (Andjia, Chad).
Help on IMA Status: IMA Status: Approved IMA 1972
Help on Locality: Locality: In the Kanem region, near Andjia, Chad. From Lake Bogoria, Rift Valley, Kenya. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after Kanem, a region on the northeastern edge of Lake Chad, Chad, where the mineral was discovered.
Help on Name Pronunciation: Name Pronunciation: Kanemite Say KANEMITE

Kanemite Image

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Comments: Yellowish white translucent micro spherical aggregate of kanemite.
Location: Kanem, Chad. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kanemite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.2412:1:0.3548
Help on Cell Dimensions: Cell Dimensions: a = 4.946, b = 20.502, c = 7.275, Z = 4; V = 737.71 Den(Calc)= 1.93
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P bcn
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.014(1), 10.33(1), 3.435(0.9),

Physical Properties of Kanemite

Help on Cleavage: Cleavage: {010} Perfect, {100} Good
Help on Color: Color: Colorless, White.
Help on Density: Density: 1.926
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Hardness: Hardness: 4 - Fluorite
Help on Streak: Streak: white

Optical Properties of Kanemite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.009 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.011 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2416,KPDmeas= 0.2421,KC= 0.2443
Ncalc = 1.47
Help on Optical Data: Optical Data: Biaxial (-), a=1.451, b=1.47, g=1.478, bire=0.0270, 2V(Calc)=64, 2V(Meas)=46.

Calculated Properties of Kanemite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.98 gm/cc
note: Specific Gravity of Kanemite =1.93 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEKanemite = 1.25 barns/electron
U=PEKanemite x rElectron Density= 2.47 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kanemite is Not Radioactive

Kanemite Classification

Help on  Dana Class: Dana Class: (73)Phyllosilicate Condensed Tetrahedral Sheets
  (73.01)with double layers
  (73.01.05)Dana Group Kanemite NaHSi2O5•3(H2O) P bcn 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.EF.25 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EF -Single nets with 6-membered rings, � other rings
09.EF.25 Kanemite NaHSi2O5•3(H2O) P bcn 2/m 2/m 2/m

Other Kanemite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Kanemite :
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.EF.25





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