| |
 |
Diomignite Mineral Data
|
|
|
General Diomignite Information
|
 Chemical Formula: |
Li2B4O7 |
| 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 |
| Empirical Formula: |
Li2B4O7 |
| Environment: |
Abundant in fluid inclusions in spodumene crystallized from a late-stage hydrothermal fluid in a granite pegmatite. |
| IMA Status: |
Approved IMA 1987 |
| Locality: |
Tanco pegmatite, Bernic Lake, Manitoba, Canada. Link to MinDat.org Location Data. |
| Name Origin: |
Named from the Greek meaning divine mix, in allusion to its likely pronounced fluxing effects. |
| Name Pronunciation: |
Diomignite + Pronunciation  |
| Synonym: |
ICSD 300010 |
| |
PDF 18-717 |
| |
Diomignite Crystallography
|
| Axial Ratios: |
a:c = 1:1.08542 |
| Cell Dimensions: |
a = 9.47, c = 10.279, Z = 8; V = 921.83 Den(Calc)= 2.44 |
| Crystal System: |
Tetragonal - Ditetragonal Pyramidal H-M Symbol (4mm) Space Group: I 41cd |
| X Ray Diffraction: |
By Intensity(I/Io): 4.07(1), 2.662(0.6), 3.495(0.5), |
| |
Physical Properties of Diomignite
|
| Color: |
Colorless. |
| Diaphaneity: |
Transparent |
| Streak: |
white |
| |
Optical Properties of Diomignite
|
| Gladstone-Dale: |
CI calc= -0.033 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2389,KC= 0.2313
Ncalc = 1.56 |
| Optical Data: |
Uniaxial (-), e=1.554, w=1.612, bire=0.0580. |
| |
Calculated Properties of Diomignite
|
| Electron Density: |
Bulk Density (Electron Density)=2.37 gm/cc
note: Specific Gravity of Diomignite =2.44 gm/cc.
|
| Fermion Index: |
Fermion Index = 0.05
Boson Index = 0.95 |
| Photoelectric: |
PEDiomignite = 0.33 barns/electron
U=PEDiomignite x rElectron Density= 0.77 barns/cc.
|
| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Diomignite is Not Radioactive |
| |
Diomignite Classification
|
| 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 |
| 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
|
| References: |
NAME( AntBidBlaNic5) PHYS. PROP.(Am.Min.,Vol.73,p928,1988) OPTIC PROP.(Am.Min.,Vol.73,p928,1988) |
| 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 - 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 Diomignite using:
[AOL]
[Bing]
[Dog Pile]
[GeoScienceWorld]
[HotBot]
[Ixquick]
[Lycos]
[MAMMA]
[Scirus]
[Teoma]
[WebCrawler]
[Wikipedia]
[YAHOO]
Visit our Advertisers for Diomignite :
Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.
Ask about Diomignite 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 Diomignite Specimen Label here :
|
Diomignite
Li2B4O7
Dana No: 24.05.04.01 Strunz No: 06.DD.05
Locality:
Notes:
|
|
| |
| |
|
| |