Mineralogy Database

Allanpringite Mineral Data

Search Webmineral :

General Allanpringite Information

Help on Chemical  Formula: Chemical Formula: Fe3(PO4)2(OH)3•5H2O
Help on Composition: Composition: Molecular Weight = 498.07 gm
   Aluminum     0.16 %  Al    0.31 % Al2O3
   Iron        33.41 %  Fe   47.77 % Fe2O3
   Phosphorus  12.44 %  P    28.50 % P2O5
   Hydrogen     2.62 %  H    23.44 % H2O
   Oxygen      51.36 %  O
              ______        ______ 
              100.00 %      100.02 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe3+2.98Al0.03(PO4)2(OH)3.02•4.97(H2O)
Help on Environment: Environment: Secondary mineral on dump of the abandoned mine. Wavellite group.
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: Grube Mark near Essershausen, Taunus, Hesse, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Allan Pring, eminent Australian mineralogist.
Help on Synonym: Synonym: IMA2004-050

Allanpringite Image

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


Comments: Yellow crystals of allanpringite with cacoxenite and beraunite.
Location: Grube Mark, Essershausen, Weilburg, Taunus, Gerrmany. Scale: Picture size 1 cm.
© Diederik Visser

Allanpringite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.3287:1:2.4232
Help on Cell Dimensions: Cell Dimensions: a = 9.777, b = 7.358, c = 17.83, Z = 4; beta = 92.19° V = 1,281.74 Den(Calc)= 2.58
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/n pseudo-ortho
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 8.9(1), 3.231(0.8), 8.41(0.6),3.6(0.5), 5.87(0.5), 3.357(0.4), 4.873(0.3), 2.177(0.2),

Physical Properties of Allanpringite

Help on Cleavage: Cleavage: {hk0} Perfect, {010} Good
Help on Color: Color: Pale brownish yellow.
Help on Density: Density: 2.54
Help on Diaphaneity: Diaphaneity: Translucent to transparent
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: pale yellowish white

Optical Properties of Allanpringite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.033 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.048 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2693,KPDmeas= 0.2735,KC= 0.283
Ncalc = 1.72 - 1.73
Help on Optical Data: Optical Data: Biaxial (+), a=1.662, b=1.675, g=1.747, bire=0.0850

Calculated Properties of Allanpringite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.54 gm/cc
note: Specific Gravity of Allanpringite =2.54 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0073341424
Boson Index = 0.9926658576
Help on Photoelectric: Photoelectric: PEAllanpringite = 10.42 barns/electron
U=PEAllanpringite x rElectron Density= 26.43 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Allanpringite is Not Radioactive

Allanpringite Classification

Help on  Dana Class: Dana Class: (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.10)where (AB)3 (XO4)2 Zq � x(H2O)
  (42.10.02)Wavellite Group Wavellite Al3(PO4)2(OH,F)3•5(H2O) Pcmn 2/m 2/m 2/m Allanpringite! Fe3(PO4)2(OH)3•5H2O P 21/n pseudo-ortho 2/m
Help on  Strunz Class: Strunz Class: 08.DC.50 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DC -With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1
08.DC.50 Wavellite Al3(PO4)2(OH,F)3•5(H2O) Pcmn 2/m 2/m 2/m
08.DC.50 Allanpringite! Fe3(PO4)2(OH)3•5H2O P 21/n pseudo-ortho 2/m

Other Allanpringite Information

Help on References: References: NAME( EurJMin, v18:793) PHYS. PROP.(EurJMin, v18:793) OPTIC PROP.(EurJMin, v18:793)
Help on See Also: See Also: Links to other databases for Allanpringite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Allanpringite using:

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

Visit our Advertisers for Allanpringite :

Ask about Allanpringite 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 Espa�ol

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


Dana No: Strunz No: 08.DC.50





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