Mindat Logo
Home Page Log In Message Board The Mindat Directory
Register Search Pages Chat Now! (2 online) Mindat Auctions

Diomignite

Formula:
Li
 
2
[B
 
4
O
 
7
]
System:Tetragonal
This page provides mineralogical data about Diomignite.

Classification of Diomignite

IMA status:Approved 1984
Strunz 8th edition ID:5/H.10-10
Nickel-Strunz 10th (pending) edition ID:6.DD.05

6 : BORATES
D : Tetraborates
D : Tekto-tetraborates
Dana 8th edition ID:24.5.4.1

24 : ANHYDROUS BORATES
5 : Miscellaneous
Hey's CIM Ref.:9.1.3

9 : Borates
1 : Borates of the alkalis and boric acid
mindat.org URL:http://www.mindat.org/min-1293.html
Please feel free to link to this page.

Type Occurrence of Diomignite

Type Locality:Tanco Mine (Bernic Lake Mine), Bernic Lake, Lac-du-Bonnet area, Manitoba, Canada
Year of Discovery:1987

Crystallography of Diomignite

Crystal System:Tetragonal
Cell Parameters:a = 9.47Å, c = 10.27Å
Ratio:a:c = 1 : 1.084
Unit Cell Volume:V 921.02 ų (Calculated from Unit Cell)

Optical Data of Diomignite

Type:Uniaxial (-)
RI values: nω = 1.612 nε = 1.554
Maximum Birefringence:δ = 0.058

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate

Chemical Properties of Diomignite

Formula:
Li
 
2
[B
 
4
O
 
7
]
Essential elements:B, Li, O
All elements listed in formula:B, Li, O

Relationship of Diomignite to other Species

Related Minerals - Hey's Index Grouping:

- +
9.1.1Sassolite
H
 
3
BO
 
3
9.1.2Metaborite
HBO
 
2
9.1.4Biringuccite
Na
 
2
B
 
5
O
 
8
(OH)·H
 
2
O
9.1.5Nasinite
Na
 
4
B
 
10
O
 
17
·5H
 
2
O
9.1.6Kernite
Na
 
2
[B
 
4
O
 
6
(OH)
 
2
] · 3H
 
2
O
9.1.7Ezcurrite
Na
 
4
B
 
10
O
 
17
·7H
 
2
O
9.1.8Tincalconite
Na
 
2
[B
 
4
O
 
7
] · 5H
 
2
O
9.1.9Borax
Na
 
2
[B
 
4
O
 
7
] · 10H
 
2
O
9.1.10Ameghinite
Na(H
 
4
B
 
3
O
 
7
)
9.1.11Sborgite
Na[B
 
5
O
 
6
(OH)
 
4
] · 3H
 
2
O
9.1.12Aristarainite
Na
 
2
MgB
 
12
O
 
20
·8H
 
2
O
9.1.13Santite
K[B
 
5
O
 
6
(OH)
 
4
] · 2H
 
2
O
9.1.14Larderellite
(NH
 
4
)B
 
5
O
 
6
(OH)
 
4
9.1.15Ammonioborite
(NH
 
4
)
 
2
[B
 
5
O
 
6
(OH)
 
4
]
 
2
 · H
 
2
O
9.1.16Rhodizite
(K,Cs)Al
 
4
Be
 
4
(B,Be)
 
12
O
 
28

Other Names for Diomignite

Synonyms:
IMA1984-058a
Other Languages:
German:Diomignit
Spanish:Diomignita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Diomignite

Reference List:Canadian Mineralogist (1987): 25: 173.

American Mineralogist (1988): 73: 928.

Acta Crystallographica: 15: 190-193.

Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).

Internet Links for Diomignite

Search Engines:
  • Look for Diomignite on Google
  • Look for Diomignite images on Google
    • External Links:
  • Look for Diomignite on Webmineral
  • Look for Diomignite on Athena Mineralogy
  • Look for Diomignite on Wikipedia
  • Look for Diomignite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Diomignite in the Natural History Museum (London) online catalogue
  • Diomignite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
  • Wendel Minerals - Auktion & Shop
  • Wilensky Fine Minerals
  • Top quality minerals from Kristalle of California
  • Fine Minerals from Dan Weinrich Minerals
  • Buy fine minerals and gemstones from Pala International
  • Find Diomignite on www.crystalclassics.co.uk
  • Fabre Minerals - search for Diomignite specimens
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • High-end worldwide specimens & outstanding customer service
  • Buy RARE Minerals from Rocks of Africa
  • Buy minerals from Mineralium.com
  • Buy from David K Joyce minerals
    • Jobs:
  • Mining & Geology Jobs

    • Page Sponsor

    Sponsorship:This page is currently not sponsored. Click here to sponsor this page.

    Localities for Diomignite

    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Canada
     
    • Manitoba
      • Lac-du-Bonnet area
        • Bernic Lake
    		Can.Min.(1987) 25, 173-180
    Mineral and/or Locality
    Google
     
    www.mindat.org Web
    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 13th Nov 2009 14:29:37