Mineralogy Database

Bonaccordite Mineral Data

Search Webmineral :
  
Advertisment

General Bonaccordite Information

Help on Chemical  Formula: Chemical Formula: Ni2Fe+++BO5
Help on Composition: Composition: Molecular Weight = 264.03 gm
   Iron    21.15 %  Fe   30.24 % Fe2O3
   Nickel  44.46 %  Ni   56.58 % NiO
   Boron    4.09 %  B    13.18 % B2O3
   Oxygen  30.30 %  O
          ______        ______ 
          100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ni2Fe3+BO5
Help on Environment: Environment: Small tabular body of nickeliferous serpentinite, probably a contact deposit, along the junction of quartzite and an ultramafic intrusive. Possibly because of a nickel-rich meteorit e impact.
Help on IMA Status: IMA Status: Approved IMA 1974
Help on Locality: Locality: Three km west of the Scotia talc mine, Bon Accord area, Barberton, Transvaal, South Africa. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Bonaccordite + Pronunciation Say BONACCORDITE
Help on Synonym: Synonym: ICSD 71193
  PDF 29-939
 

Bonaccordite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7533:1:0.2454
Help on Cell Dimensions: Cell Dimensions: a = 9.213, b = 12.229, c = 3.001, Z = 4; V = 338.11 Den(Calc)= 5.19
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pbam
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.514(1), 2.548(1), 5.1(0.5),
 

Physical Properties of Bonaccordite

Help on Color: Color: Reddish brown.
Help on Density: Density: 5.17
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 7 - Quartz
Help on Luster: Luster: Vitreous - Adamantine
Help on Streak: Streak: brown
 

Optical Properties of Bonaccordite

Help on Optical Data: Optical Data: NCalc= 2.16 - from Gladstone-Dale relationship (KC = 0.2232) where Ncalc=Dcalc*KC+1
NCalc= 2.15 - from Gladstone-Dale relationship (KC = 0.2232) where Ncalc=Dmeas*KC+1
 

Calculated Properties of Bonaccordite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=4.99 gm/cc
note: Specific Gravity of Bonaccordite =5.19 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEBonaccordite = 24.37 barns/electron
U=PEBonaccordite x rElectron Density= 121.65 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Bonaccordite is Not Radioactive
 

Bonaccordite Classification

Help on  Dana Class: Dana Class: 24.02.01.04 (24)Borates - Anhydrous
  (24.02)where (A)2 BO2 [XO3]
  (24.02.01)Ludwigite Group (Space Group: Pbam)
 
24.02.01.01 Ludwigite Mg2FeBO5 Pbam 2/m 2/m 2/m
 
24.02.01.02 Vonsenite Fe2FeBO5 Pbam 2/m 2/m 2/m
 
24.02.01.03 Azoproite (Mg,Fe)2(Fe,Ti,Mg)BO5 Pbam 2/m 2/m 2/m
 
24.02.01.04 Bonaccordite Ni2FeBO5 Pbam 2/m 2/m 2/m
 
24.02.01.05 Chestermanite Mg2(Fe,Mg,Al,Sb)BO3O2 Pbam 2/m 2/m 2/m
 
24.02.01.06 Fredrikssonite Mg2(Mn,Fe)O2(BO3) Pbam 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 06.AB.30 06 - BORATES
  06.A - Monoborates
  06.AB -BO3, with additional anions; 1(D) + OH, etc.
 
06.AB.30 Azoproite (Mg,Fe)2(Fe,Ti,Mg)BO5 Pbam 2/m 2/m 2/m
 
06.AB.30 Bonaccordite Ni2FeBO5 Pbam 2/m 2/m 2/m
 
06.AB.30 Fredrikssonite Mg2(Mn,Fe)O2(BO3) Pbam 2/m 2/m 2/m
 
06.AB.30 Ludwigite Mg2FeBO5 Pbam 2/m 2/m 2/m
 
06.AB.30 Vonsenite Fe2FeBO5 Pbam 2/m 2/m 2/m
 

Other Bonaccordite Information

Help on References: References: NAME( AntBidBlaNic5) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Bonaccordite :
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

Search for Bonaccordite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Bonaccordite :

Ask about Bonaccordite 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 Bonaccordite Specimen Label here :

Bonaccordite

Ni2Fe+++BO5
Dana No: 24.02.01.04 Strunz No: 06.AB.30
Locality:

 

Notes:

 

 
   
 


Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.