Brokenhillite  Mineral Data

Brokenhillite Mineral Data

Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About



[Newest Minerals] [Minerals for Sale] [Educational Articles] [About Us] [Image Gallery]
John Betts - Fine Minerals
Classic minerals, out-of-print books & magazines, plus informative articles for collectors


General Brokenhillite Information

Help on Chemical  Formula: Chemical Formula: (Mn,Fe)32[Si24O60]OH29Cl11
Help on Composition: Composition: Molecular Weight = 4,282.50 gm
   Manganese  30.79 %  Mn   39.75 % MnO
   Iron       10.43 %  Fe   13.42 % FeO
   Silicon    15.74 %  Si   33.67 % SiO2
   Hydrogen    0.68 %  H     6.10 % H2O
   Chlorine    9.11 %  Cl    9.11 % Cl
                -   %   Cl   -2.05 % -O=Cl2   
   Oxygen     33.25 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+24Fe2+8Si24O60(OH)29Cl11
Help on Environment: Environment: Discredited as being manganpyrosmalite which has priority.
Help on IMA Status: IMA Status: Not Approved IMA
Help on Locality: Locality: Broken Hill, New South Wales, Australia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
 

Search for Brokenhillite Images

Click Here To Search Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

  

Brokenhillite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.04472
Help on Cell Dimensions: Cell Dimensions: a = 13.481, c = 14.084, Z = 2; V = 2,216.67 Den(Calc)= 6.42
Help on Crystal System: Crystal System: Hexagonal - Dihexagonal PyramidalH-M Symbol (6mm) Space Group: P 63mc
 

Physical Properties of Brokenhillite

Help on Cleavage: Cleavage: {???} Good
Help on Color: Color: Brown.
Help on Hardness: Hardness: 4-5 - Fluorite-Apatite
Help on Streak: Streak: light brown
 

Optical Properties of Brokenhillite

Help on Optical Data: Optical Data: NCalc= 2.43 - from Gladstone-Dale relationship (KC = 0.2231) where Ncalc=Dcalc*KC+1
 

Calculated Properties of Brokenhillite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.21 gm/cc
note: Specific Gravity of Brokenhillite =6.42 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0097227741
Boson Index = 0.9902772259
Help on Photoelectric: Photoelectric: PEBrokenhillite = 12.22 barns/electron
U=PEBrokenhillite x rElectron Density= 75.92 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Brokenhillite is Not Radioactive
 

Brokenhillite Classification

Help on  Dana Class: Dana Class: 65.00.00.00 (65)Inosilicate Minerals
  (65.00)Without Dana Classification Numbers
  (65.00.00)Pyrosmalite group
 
65.00.00.00 Ashcroftine-(Ce)* K5Na5(Ce,Ca)12Si28O70(OH)2(CO3)8•8(H2O) I 4/mmm 4/m 2/m 2/m
 
65.00.00.00 Brokenhillite* (Mn,Fe)32[Si24O60]OH29Cl11 P 63mc 6mm
 
65.00.00.00 Grossmanite CaTiAlSiO6 C 2/m 2/m
 
65.00.00.00 Hypersthene? (Mg,Fe)2Si2O6 2/m 2/m 2/m
 
65.00.00.00 IMA2007-015 K(CaNa)(Fe3Al2)(Si6Al2)O22(OH)2 C 2/m 2/m
 
65.00.00.00 IMA2008-070 NaLi2(Fe2Al2Li)(Si6Al2)O22F2 C 2/m 2/m
 
65.00.00.00 IMA2009-010 [Ba6(PO4)2(CO3)][Fe7(OH)4Fe2O2(SiO3)8] P1 1
 
65.00.00.00 IMA2009-012 NaNa2(Mg2Al2Li)Si8O22F2 C 2/m 2/m
 
65.00.00.00 Kushiroite CaAl2SiO6 C 2/c 2/m
 
65.00.00.00 Plumalsite* Pb4Al2(SiO3)7(?) Unk Ortho
Help on  Strunz Class: Strunz Class: 09.EE.10 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EE -Single tetrahedral nets of 6-membered rings
 
09.EE.10 Brokenhillite* (Mn,Fe)32[Si24O60]OH29Cl11 P 63mc 6mm
 
09.EE.10 Friedelite Mn8Si6O15(OH,Cl)10 C 2/m 2/m
 
09.EE.10 Mcgillite (Mn,Fe)8Si6O15(OH)8Cl2 C 2/m 2/m
 
09.EE.10 Pyrosmalite-(Fe) (Fe,Mn)8Si6O15(OH,Cl)10 P 3m1 3 2/m
 
09.EE.10 Pyrosmalite-(Mn) (Mn,Fe)8Si6O15(OH,Cl)10 P 3m1 3 2/m
 

Other Brokenhillite Information

Help on References: References: PHYS. PROP.(Am.Min.,Vol.74,p1399,1989)
Help on See Also: See Also: Links to other databases for Brokenhillite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - MinDAT
8 - MinMax(Deutsch)
9 - MinMax(English)
10 - Mineralienatlas (Deutsch)
11 - QUT Mineral Atlas
12 - Ruff.Info

Search for Brokenhillite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Brokenhillite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Brokenhillite Mineral Data :

Ask about Brokenhillite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Espaņol

Print or Cut-and-Paste your Brokenhillite Specimen Label here :

Brokenhillite

(Mn,Fe)32[Si24O60]OH29Cl11
Dana No: 65.00.00.00 Strunz No: 09.EE.10
Locality:

 

Notes: