Kombatite Mineral Data

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


Dan Weinrich Fine Minerals
[Fine Minerals] [What's New] [Mineral Galleries] [My Collection] [Mineral Auctions]
Dan Weinrich Fine Minerals
Full-time professional mineral dealer with over 31 years experience in mineral collecting
And 15 years selling mineral specimens on the internet and at major mineral shows


General Kombatite Information

Help on Chemical Formula: Chemical Formula: Pb14(VO4)2O9Cl4
Help on Composition: Composition: Molecular Weight = 3,416.48 gm
   Vanadium   2.98 %  V     5.32 % V2O5
   Lead      84.91 %  Pb   91.46 % PbO
   Chlorine   4.15 %  Cl    4.15 % Cl
               -   %   Cl   -0.94 % -O=Cl2   
   Oxygen     7.96 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb14(VO4)2O9Cl4
Help on IMA Status: IMA Status: Approved IMA 1986
Help on Locality: Locality: Kombat mine, located 37 km east of Otavi and 49 km south of Tsumeb in the north-central part of Namibia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: The name is for the Kombat mine, which is the Anglicized version of the Herero names, "Okombahe Tijinene" and "Okombahe Katiti" which mean "the large drinking place of the giraffe," and the "small drinking place of the
Help on Name Pronunciation: Name Pronunciation: Kombatite + Pronunciation Say KOMBATITE
Help on Synonym: Synonym: ICSD 75288
  PDF 40-497
 

Kombatite Image

Click Here for Larger Kombatite Image in a New Browser Window Images:
Click Here for Larger Kombatite Image

Kombatite   Hausmannite

Comments: Yellow kombatite crystals in black hausmannite.
Location: Kombat Mine, Otavi, Namibia. Scale: Picture size 4 mm.
© Thomas Witzke / Abraxas-Verlag

Kombatite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.5619:1:0.4998
Help on Cell Dimensions: Cell Dimensions: a = 12.682, b = 22.566, c = 11.279, Z = 4; beta = 118.11° V = 2,847.11 Den(Calc)= 7.97
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.812(1), 2.958(1), 3.006(1),
Click Here for Large Kombatite 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


Cooper M A , Hawthorne F C , American Mineralogist , 79 (1994) p.550-554, The crystal structure of kombatite, Pb14(VO4)2O9Cl4, a complex heteropolyhedral, sheet mineral

 

Physical Properties of Kombatite

Help on Cleavage: Cleavage: {???} Perfect
Help on Color: Color: Light yellow.
Help on Diaphaneity: Diaphaneity: Translucent
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Luster: Luster: Adamantine
Help on Streak: Streak: light yellow
 

Optical Properties of Kombatite

Help on Optical Data: Optical Data: NCalc= 2.22 - from Gladstone-Dale relationship (KC = 0.1529) where Ncalc=Dcalc*KC+1
 

Calculated Properties of Kombatite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.52 gm/cc
note: Specific Gravity of Kombatite =7.97 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.18
Boson Index = 0.82
Help on Photoelectric: Photoelectric: PEKombatite =1,593.62 barns/electron
U=PEKombatite x rElectron Density=10394.43 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kombatite is Not Radioactive
 

Kombatite Classification
Help on Dana Class: Dana Class: 41.01.04.02 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.01)where (A++)m (XO4)p Zq, with m:p>4:1
  (41.01.04)Dana Group
 
41.01.04.01 Sahlinite Pb14(AsO4)2O9Cl4 C 2/c 2/m
 
41.01.04.02 Kombatite Pb14(VO4)2O9Cl4 C 2/c 2/m
Help on Strunz Class: Strunz Class: 08.BO.20 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BO -With only large cations, (OH, etc.):RO4 ³ 1:1
 
08.BO.20 Kombatite Pb14(VO4)2O9Cl4 C 2/c 2/m
 
08.BO.20 Sahlinite Pb14(AsO4)2O9Cl4 C 2/c 2/m
 

Other Kombatite Information
Help on References: References: NAME( MinRec, v 22, p 422) PHYS. PROP.(Am.Min.,Vol.73,p928,1988)
Help on See Also: See Also: Links to other databases for Kombatite :
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 Kombatite using:

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

Visit our Advertisers for Kombatite :

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 Kombatite Mineral Data :

Ask about Kombatite 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 Español

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

Kombatite

Pb14(VO4)2O9Cl4
Dana No: 41.01.04.02 Strunz No: 08.BO.20
Locality:

 

Notes: