Orthopinakiolite Mineral Data

Orthopinakiolite Mineral Data
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General Orthopinakiolite Information

Help on Chemical Formula: Chemical Formula: (Mg,Mn++)2Mn+++BO5
Help on Composition: Composition: Molecular Weight = 209.58 gm
   Magnesium  16.47 %  Mg   27.31 % MgO
   Manganese  34.34 %  Mn   14.55 % MnO / 33.15 % Mn2O3
   Iron        5.86 %  Fe    8.38 % Fe2O3
   Boron       5.16 %  B    16.61 % B2O3
   Oxygen     38.17 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg1.42Mn2+0.43Mn3+0.88Fe3+0.22BO5
Help on Environment: Environment: Veinlets in granular dolomite in a metamorphosed Fe-Mn orebody.
Help on IMA Status: IMA Status: Approved IMA 1960
Help on Locality: Locality: Langban, V¨armland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as an ORTHOrhombic mineral related to pinakiolite.
Help on Name Pronunciation: Name Pronunciation: Orthopinakiolite + Pronunciation Say ORTHOPINAKIOLITE
Help on Synonym: Synonym: ICSD 200425
  PDF 33-656
 

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Orthopinakiolite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.4579:1:0.4819
Help on Cell Dimensions: Cell Dimensions: a = 18.357, b = 12.591, c = 6.068, Z = 16; V = 1,402.51 Den(Calc)= 3.97
Help on Crystal System: Crystal System: Orthorhombic - DipyramidalH-M Symbol (2/m 2/m 2/m) Space Group: Pnnm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.596(1), 2.531(0.85), 5.192(0.65),
Click Here for Large Orthopinakiolite Structure Window Crystal Structure:

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Takeuchi Y , Haga N , Kato T , Miura Y , The Canadian Mineralogist , 16 (1978) p.475-485, Orthopinakiolite, Me2.95O2[BO3]: its crystal structure, and relationship to pinakiolite, Me2.90O2[BO3], Note: z-coordinate of O9 changed. y-coordinate of M7* changed.

 

Physical Properties of Orthopinakiolite

Help on Cleavage: Cleavage: {010} Good
Help on Color: Color: Black.
Help on Density: Density: 4.03
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Hardness: Hardness: 6 - Orthoclase
Help on Luster: Luster: Metallic
Help on Streak: Streak: brown gray
 

Optical Properties of Orthopinakiolite

Help on Optical Data: Optical Data: NCalc= 1.97 - from Gladstone-Dale relationship (KC = 0.2452) where Ncalc=Dcalc*KC+1
NCalc= 1.99 - from Gladstone-Dale relationship (KC = 0.2452) where Ncalc=Dmeas*KC+1
 

Calculated Properties of Orthopinakiolite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.81 gm/cc
note: Specific Gravity of Orthopinakiolite =3.97 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEOrthopinakiolite = 11.05 barns/electron
U=PEOrthopinakiolite x rElectron Density= 42.09 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Orthopinakiolite is Not Radioactive
 

Orthopinakiolite Classification
Help on Dana Class: Dana Class: 24.02.05.01 (24)Borates - Anhydrous
  (24.02)where (A)2 BO2 [XO3]
  (24.02.05)Dana Group
 
24.02.05.01 Orthopinakiolite (Mg,Mn)2MnBO5 Pnnm 2/m 2/m 2/m
Help on Strunz Class: Strunz Class: 06.AB.40 06 - BORATES
  06.A - Monoborates
  06.AB -BO3, with additional anions; 1(D) + OH, etc.
 
06.AB.40 Blatterite (Mn,Mg)35Sb3(Mn,Fe)9(BO3)16O32 Pnnm 2/m 2/m 2/m
 
06.AB.40 Chestermanite Mg2(Fe,Mg,Al,Sb)BO3O2 Pbam 2/m 2/m 2/m
 
06.AB.40 Orthopinakiolite (Mg,Mn)2MnBO5 Pnnm 2/m 2/m 2/m
 
06.AB.40 Takeuchiite Mg2MnO2(BO3) Pnnm 2/m 2/m 2/m
 

Other Orthopinakiolite 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 Orthopinakiolite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - CalTech Mineral Spectroscopy
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

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

Orthopinakiolite

(Mg,Mn++)2Mn+++BO5
Dana No: 24.02.05.01 Strunz No: 06.AB.40
Locality:

 

Notes: