Bannermanite Mineral Data

Bannermanite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About


Desert Winds Gems and Minerals
[Mineral Galleries] [About Me] [e-Bay Items] [Latest News] [How to Order]
A Diverse Selection of Beautifully Unique Gem & Mineral Specimens
Desert Winds Gems & Minerals • For All Levels of Collectors Worldwide
Aesthetic & Rare Mineral Specimens • Regular Updates


General Bannermanite Information

Help on Chemical Formula: Chemical Formula: (Na,K)0.7V+++++6O15
Help on Composition: Composition: Molecular Weight = 564.95 gm
   Potassium   1.38 %  K     1.67 % K2O
   Sodium      2.03 %  Na    2.74 % Na2O
   Vanadium   54.10 %  V    96.58 % V2O5
   Oxygen     42.48 %  O
             ______        ______ 
             100.00 %      100.99 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na0.5K0.2V5+6O15
Help on Environment: Environment: In fumaroles.
Help on IMA Status: IMA Status: Approved IMA 1981
Help on Locality: Locality: Izalco volcano, El Salvador. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Harold M. Bannerman (1897-1976), U. S. Economic Geologist.
Help on Name Pronunciation: Name Pronunciation: Bannermanite + Pronunciation Say BANNERMANITE
Help on Synonym: Synonym: ICSD 31208
  PDF 35-713
 

Search for Bannermanite Images

Click Here To Search Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.
  

Bannermanite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =4.2636:1:2.7845
Help on Cell Dimensions: Cell Dimensions: a = 15.413, b = 3.615, c = 10.066, Z = 2; beta = 109.29° V = 529.37 Den(Calc)= 3.54
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.367(1), 7.24(1), 3.068(0.8),
Click Here for Large Bannermanite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


Hughes J M , Finger L W , American Mineralogist , 68 (1983) p.634-641

 

Physical Properties of Bannermanite

Help on Cleavage: Cleavage: {100} Perfect, {010} Fair
Help on Color: Color: Black.
Help on Density: Density: 3.5
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Lath - Shaped like a small, thin plaster lath, tabular (rectangular) in shape.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Luster: Luster: Sub Metallic
Help on Streak: Streak: brownish black
 

Optical Properties of Bannermanite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.018 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.006 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.339,KPDmeas= 0.3429,KC= 0.3369
Ncalc = 2.18 - 2.19
Help on Optical Data: Optical Data: Biaxial (?), b=2.2
 

Calculated Properties of Bannermanite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.35 gm/cc
note: Specific Gravity of Bannermanite =3.54 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0015581015
Boson Index = 0.9984418985
Help on Photoelectric: Photoelectric: PEBannermanite = 10.68 barns/electron
U=PEBannermanite x relectron= 35.76 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 18.88 (Gamma Ray American Petroleum Institute Units)
Concentration of Bannermanite per GRapi unit = 5.30 (%)

Estimated Radioactivity from Bannermanite - barely detectable

 

Bannermanite Classification
Help on Dana Class: Dana Class: 47.03.05.01 (47)Vanadium Oxysalts
  (47.03)(Hydrated)
  (47.03.05)Dana Group
 
47.03.05.01 Bannermanite (Na,K)0.7V6O15 C 2/m 2/m
Help on Strunz Class: Strunz Class: 04.HF.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.H - V[5,6] Vanadates
  04.HF -Tektovanadates
 
04.HF.05 Bannermanite (Na,K)0.7V6O15 C 2/m 2/m
 

Other Bannermanite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Bannermanite :
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
15 - WWW-MINCRYST

Search for Bannermanite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Bannermanite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Bannermanite Mineral Data :

Ask about Bannermanite 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 Bannermanite Specimen Label here :

Bannermanite

(Na,K)0.7V+++++6O15
Dana No: 47.03.05.01 Strunz No: 04.HF.05
Locality:

 

Notes: