Mineralogy Database

Clinobirnessite Mineral Data

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General Clinobirnessite Information

Help on Chemical  Formula: Chemical Formula: Na4Mn14O27•9(H2O)
Help on Composition: Composition: Molecular Weight = 1,455.21 gm
   Sodium      6.32 %  Na    8.52 % Na2O
   Manganese  52.85 %  Mn   37.97 % Mn2O3 / 41.82 % MnO2
   Hydrogen    1.25 %  H    11.14 % H2O
   Oxygen     39.58 %  O
             ______        ______ 
             100.00 %       99.45 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na4Mn3+7Mn4+7O27•9(H2O)
Help on IMA Status: IMA Status: Not Approved IMA
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Name as the monoclinic polymorph of birnessite.

Clinobirnessite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5549:1:0.4548
Help on Cell Dimensions: Cell Dimensions: a = 8.54, b = 15.39, c = 7, Z = 1; beta = 132.2° V = 681.55 Den(Calc)= 3.55
Help on Crystal System: Crystal System: Monoclinic

Optical Properties of Clinobirnessite

Help on Optical Data: Optical Data: NCalc= 2.18 - from Gladstone-Dale relationship (KC = 0.3331) where Ncalc=Dcalc*KC+1

Calculated Properties of Clinobirnessite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.42 gm/cc
note: Specific Gravity of Clinobirnessite =3.55 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0001918558
Boson Index = 0.9998081442
Help on Photoelectric: Photoelectric: PEClinobirnessite = 13.75 barns/electron
U=PEClinobirnessite x rElectron Density= 46.95 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Clinobirnessite is Not Radioactive

Clinobirnessite Classification

Help on  Dana Class: Dana Class: (04)Oxide Minerals
  (04.00)Without Dana Classification Numbers
  (04.00.00)Oxide, Hydrated Ashanite? (Nb,Ta,U,Fe,Mn)4O8 Pcan 2/m 2/m 2/m Chubutite* Pb7O6Cl2 Unk Ortho Clinobirnessite* Na4Mn14O27•9(H2O) Mono Donathite? (Fe,Mg)(Cr,Fe)2O4 P 4/nnm 4/m 2/m 2/m IMA2008-022 UO2(OH)2 pseudo-orthorhombic Mono Krasnogorite* WO3 Pmnb 2/m 2/m 2/m Mengxianminite* (Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29 Unk Ortho Romanite* (Fe,U,Pb)2(Ti,Fe)O4 Trig ? Trig Tantalowodginite* (Mn2,[])4Ta4Ta8O32 C 2/c 2/m Ungursaite* NaCa5(Ta,Nb)24O65(OH) P 63/m,P 63 Hex Wolframoixiolite* (Fe,Mn,Nb)(Nb,W,Ta)O4 Pc m
Help on  Strunz Class: Strunz Class: 04.XX.00 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.X - Unclassified Strunz OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, telluri
  04.XX -Oxide, Hydrated
04.XX.00 Ashanite? (Nb,Ta,U,Fe,Mn)4O8 Pcan 2/m 2/m 2/m
04.XX.00 Methane hydrate-I! 46(H2O)•2(S)•6(L) P m3n 4/m 3 2/m
04.XX.00 Clinobirnessite* Na4Mn14O27•9(H2O) Mono
04.XX.00 Chubutite* Pb7O6Cl2 Unk Ortho
04.XX.00 Kleberite* FeTi6O13•4(H2O)(?) P 63mcm ? 6mm
04.XX.00 Hongquiite* TiO F m3m 4/m 3 2/m
04.XX.00 Psilomelane? (Ba,H2O)2Mn5O10 A2/m 2/m
04.XX.00 Struverite? (Ti,Ta,Fe)O2 P 4/mnm 4/m 2/m 2/m
04.XX.00 Ungursaite* NaCa5(Ta,Nb)24O65(OH) P 63/m,P 63 Hex
04.XX.00 Uhligite? Ca3(Ti,Al,Zr)9O20 Unk Cubic
04.XX.00 Scheteligite? (Ca,Y,Sb,Mn)2(Ti,Ta,Nb,W)2O6(O,OH) Unk Ortho
04.XX.00 Allendeite! Sc4Zr3O12 R 3 3
04.XX.00 IMA2000-016! (Ti,Fe,Mg,Mn)1-xTi2O5 Pban 2/m 2/m 2/m
04.XX.00 Methane hydrate-II! 136(H2O)•16(S)•8(L) F d3m 4/m 3 2/m
04.XX.00 IMA2000-026! (Mn,Li)4(Ta,Sn)4(Ta,Nb)8O32 C 2/c 2/m
04.XX.00 Methane hydrate-H! 34(H2O)•3(S)•2(M)•1(L) P 6/mmm 6/m 2/m 2/m

Other Clinobirnessite Information

Help on References: References: PHYS. PROP.(37th List of New Min.,Min. Mag.,1996)
Help on See Also: See Also: Links to other databases for Clinobirnessite :
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

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Dana No: Strunz No: 04.XX.00





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