Diomignite Mineral Data

Diomignite Mineral Data
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General Diomignite Information

Help on Chemical Formula: Chemical Formula: Li2B4O7
Help on Composition: Composition: Molecular Weight = 169.12 gm
   Lithium   8.21 %  Li   17.67 % Li2O
   Boron    25.57 %  B    82.33 % B2O3
   Oxygen   66.22 %  O
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Li2B4O7
Help on Environment: Environment: Abundant in fluid inclusions in spodumene crystallized from a late-stage hydrothermal fluid in a granite pegmatite.
Help on IMA Status: IMA Status: Approved IMA 1987
Help on Locality: Locality: Tanco pegmatite, Bernic Lake, Manitoba, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek meaning divine mix, in allusion to its likely pronounced fluxing effects.
Help on Name Pronunciation: Name Pronunciation: Diomignite + Pronunciation Say DIOMIGNITE
Help on Synonym: Synonym: ICSD 300010
  PDF 18-717
 

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Diomignite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:1.08542
Help on Cell Dimensions: Cell Dimensions: a = 9.47, c = 10.279, Z = 8; V = 921.83 Den(Calc)= 2.44
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal PyramidalH-M Symbol (4mm) Space Group: I 41cd
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 4.07(1), 2.662(0.6), 3.495(0.5),
Click Here for Large Diomignite Structure Window Crystal Structure:

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Krogh-Moe J , Acta Crystallographica , 15 (1962) p.190-193, The crystal structure of lithium diborate, Li2O*2B2O3, Locality: synthetic

 

Physical Properties of Diomignite

Help on Color: Color: Colorless.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Streak: Streak: white
 

Optical Properties of Diomignite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= -0.033 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2389,KC= 0.2313
Ncalc = 1.56
Help on Optical Data: Optical Data: Uniaxial (-), e=1.554, w=1.612, bire=0.0580.
 

Calculated Properties of Diomignite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.37 gm/cc
note: Specific Gravity of Diomignite =2.44 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PEDiomignite = 0.33 barns/electron
U=PEDiomignite x rElectron Density= 0.77 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Diomignite is Not Radioactive
 

Diomignite Classification
Help on Dana Class: Dana Class: 24.05.04.01 (24)Borates - Anhydrous
  (24.05)with miscellaneous formulae
  (24.05.04)Dana Group
 
24.05.04.01 Diomignite Li2B4O7 I 41cd 4mm
Help on Strunz Class: Strunz Class: 06.DD.05 06 - BORATES
  06.D - Tetraborates
  06.DD -Tekto-tetraborates
 
06.DD.05 Diomignite Li2B4O7 I 41cd 4mm
 

Other Diomignite Information
Help on References: References: NAME( AntBidBlaNic5) PHYS. PROP.(Am.Min.,Vol.73,p928,1988) OPTIC PROP.(Am.Min.,Vol.73,p928,1988)
Help on See Also: See Also: Links to other databases for Diomignite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info

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

Diomignite

Li2B4O7
Dana No: 24.05.04.01 Strunz No: 06.DD.05
Locality:

 

Notes: