Mineralogy Database

Paulkellerite Mineral Data

Search Webmineral :

General Paulkellerite Information

Help on Chemical  Formula: Chemical Formula: Bi2Fe+++(PO4)O2(OH)2
Help on Composition: Composition: Molecular Weight = 634.79 gm
   Iron         8.80 %  Fe   12.58 % Fe2O3
   Bismuth     65.84 %  Bi   73.40 % Bi2O3
   Phosphorus   4.88 %  P    11.18 % P2O5
   Hydrogen     0.32 %  H     2.84 % H2O
   Oxygen      20.16 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Bi2Fe3+(PO4)O2(OH)2
Help on Environment: Environment: Secondary mineral in Bi-Ni-Co ores in a hydrothermal ore deposit.
Help on IMA Status: IMA Status: Approved IMA 1988
Help on Locality: Locality: Neuhilfe mine, Schneeberg, Saxony, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Paul Keller (1940- ), Professor of Mineralogy, University of Stuttgart, Stuttgart, Germany.
Help on Name Pronunciation: Name Pronunciation: Paulkellerite + Pronunciation Say PAULKELLERITE
Help on Synonym: Synonym: ICSD 202598
  PDF 41-1468

Paulkellerite Image

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


Comments: SEM photomicrograph of euhedral crystals of paulkellerite (AmMin, v73:870).
Location: Neuhilfe mine, Schneeberg, East Germany. Scale: See Image.
© American Mineralogist

Paulkellerite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.7013:1:1.4448
Help on Cell Dimensions: Cell Dimensions: a = 11.382, b = 6.69, c = 9.666, Z = 4; beta = 114.73° V = 668.52 Den(Calc)= 6.31
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.123(1), 2.162(0.4), 2.804(0.3),

Physical Properties of Paulkellerite

Help on Cleavage: Cleavage: None
Help on Color: Color: Greenish yellow.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous - Adamantine
Help on Streak: Streak: light yellow

Optical Properties of Paulkellerite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.317 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1244,KC= 0.182
Ncalc = 2.15
Help on Optical Data: Optical Data: Biaxial (+), a=1.762, b=1.767, g=1.825, bire=0.0630, 2V(Calc)=34, 2V(Meas)=37.

Calculated Properties of Paulkellerite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.43 gm/cc
note: Specific Gravity of Paulkellerite =6.31 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.001963026
Boson Index = 0.998036974
Help on Photoelectric: Photoelectric: PEPaulkellerite =1,235.17 barns/electron
U=PEPaulkellerite x rElectron Density=6,703.74 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Paulkellerite is Not Radioactive

Paulkellerite Classification

Help on  Dana Class: Dana Class: (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.03)where (A B)3 (XO4) Zq
  (41.03.08)Dana Group Paulkellerite Bi2Fe(PO4)O2(OH)2 C 2/c 2/m Brendelite! (Bi,Pb)2Fe(PO4)(O,OH)3 C 2/m 2/m
Help on  Strunz Class: Strunz Class: 08.BM.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BM -With medium-sized and large cations, (OH, etc.):RO4 = 4:1
08.BM.10 Paulkellerite Bi2Fe(PO4)O2(OH)2 C 2/c 2/m

Other Paulkellerite Information

Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Am.Min.,Vol.73,p870-872,1988) OPTIC PROP.(Am.Min.,Vol.73,p870-872,1988)
Help on See Also: See Also: Links to other databases for Paulkellerite :
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 Paulkellerite using:

Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Paulkellerite :

Ask about Paulkellerite 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 Paulkellerite Specimen Label here :


Dana No: Strunz No: 08.BM.10





Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.