Orthopinakiolite Mineral Data + Say ORTHOPINAKIOLITE

General Orthopinakiolite Information

Help on Chemical  Formula: Chemical Formula: (Mg,Mn++)2Mn+++BO5
Help on Composition: Composition: Molecular Weight = 209.67 gm
   Magnesium  17.39 %  Mg   28.83 % MgO
   Manganese  39.30 %  Mn   16.92 % MnO / 37.65 % Mn2O3
   Boron       5.16 %  B    16.60 % B2O3
   Oxygen     38.15 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg1.5Mn2+0.5Mn3+BO5
Help on IMA Status: IMA Status: Approved IMA 1960
Help on Locality: Locality: Link to MinDat.org Location Data.
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 Diaphaniety: Diaphaniety: 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
 

Calculated Properties of Orthopinakiolite

Help on Electron Density: Electron Density:

relectron=3.81 gm/cc
note: rOrthopinakiolite =3.97 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.02783
Boson Index = 0.97217
Help on Photoelectric: Photoelectric:

PEOrthopinakiolite = 10.58 barns/electron
U=PEOrthopinakiolite x relectron= 40.27 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: 24.2.5.1 (24)Borates - Anhydrous
  (24.2)where (A)2 BO2 [XO3]
  (24.2.5)Dana Group
 
24.2.5.1 Orthopinakiolite (Mg,Mn)2MnBO5 Pnnm 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: V/G.04-80 V - Nitrates, Carbonates and Borates
  V/G - "Insel" borates [BO3]3- "inseln"
  V/G.04 - Ludwigite group
 
V/G.04-10 Ludwigite Mg2FeBO5 Pbam 2/m 2/m 2/m
 
V/G.04-20 Vonsenite Fe2FeBO5 Pbam 2/m 2/m 2/m
 
V/G.04-30 Azoproite (Mg,Fe)2(Fe,Ti,Mg)BO5 Pbam 2/m 2/m 2/m
 
V/G.04-40 Chestermanite Mg2(Fe,Mg,Al,Sb)BO3O2 Pbam 2/m 2/m 2/m
 
V/G.04-50 Fredrikssonite Mg2(Mn,Fe)O2(BO3) Pbam 2/m 2/m 2/m
 
V/G.04-60 Bonaccordite Ni2FeBO5 Pbam 2/m 2/m 2/m
 
V/G.04-70 Takeuchiite Mg2MnO2(BO3) Pnnm 2/m 2/m 2/m
 
V/G.04-80 Orthopinakiolite (Mg,Mn)2MnBO5 Pnnm 2/m 2/m 2/m
 
V/G.04-90 Blatterite (Mn,Mg)35Sb3(Mn,Fe)9(BO3)16O32 Pnnm 2/m 2/m 2/m
 
V/G.04-100 Gaudefroyite Ca4Mn3-x(BO3)3(CO3)(O,OH)3 P 63 6
 

Other Orthopinakiolite Information

Help on References: References: 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 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (UofA) 8 -MinDAT 9 -MinMax(Deutsch) 10 -MinMax(English) 11 -Mineralienatlas (Deutsch) 12 -QUT Mineral Atlas 13 - WWW-MINCRYST 14 -École des Mines de Paris

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

Orthopinakiolite

(Mg,Mn++)2Mn+++BO5
Dana No: 24.2.5.1 Strunz No: V/G.04-80
Locality:

 

Notes:

 

 
   
 
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