Mineralogy Database

Kastningite Mineral Data

Search Webmineral :

General Kastningite Information

Help on Chemical  Formula: Chemical Formula: (Mn++,Fe++,Mg)Al2(PO4 )2(OH)2•8(H2O)
Help on Composition: Composition: Molecular Weight = 475.72 gm
   Magnesium    0.26 %  Mg    0.42 % MgO
   Manganese    7.51 %  Mn    9.69 % MnO
   Aluminum    11.34 %  Al   21.43 % Al2O3
   Iron         3.52 %  Fe    4.53 % FeO
   Phosphorus  13.02 %  P    29.84 % P2O5
   Hydrogen     3.81 %  H    34.08 % H2O
   Oxygen      60.54 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+0.65Fe2+0.3Mg0.05Al2(PO4)2(OH)2�8(H2O)
Help on Environment: Environment: Found in the aplitic zone of a zoned P-bearing granitic pegmatite exploited for feldspar for the ceramics industry. An alteration product of primary phosphates. Dimorphic relationsh ip with mangangordonite, and the Al-do
Help on IMA Status: IMA Status: Approved IMA 1999 (Dana # Added)
Help on Locality: Locality: Silbergrube quarry, Waidhaus, Upper Palatinate (Oberpf�lzer Wald), Bavaria, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after J�rgen Kastning (b. 1932), from Reinbeck bei Hamburg, Germany, amateur mineralogist specializing in phosphate minerals, who discovered the mineral.
Help on Name Pronunciation: Name Pronunciation: Kastningite + Pronunciation Say KASTNINGITE
Help on Synonym: Synonym: ICSD 410793

Kastningite Image

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


Comments: Colorless crystals of kastningite.
Location: Silbergrube Quarry, Waidhaus, Vohenstrauß, Oberpfalz, Bavaria, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Kastningite Crystallography

Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.917(1), 4.957(0.5), 6.541(0.36),3.001(0.3), 3.094(0.28),

Physical Properties of Kastningite

Help on Color: Color: White, Beige, Colorless.

Optical Properties of Kastningite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.004 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.005 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2422,KPDmeas= 0.2443,KC= 0.2433
Ncalc = 1.57 - 1.58

Calculated Properties of Kastningite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.40 gm/cc
note: Specific Gravity of Kastningite =2.35 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.001298381
Boson Index = 0.998701619
Help on Photoelectric: Photoelectric: PEKastningite = 3.88 barns/electron
U=PEKastningite x rElectron Density= 9.29 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kastningite is Not Radioactive

Kastningite Classification

Help on  Dana Class: Dana Class: (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.11)where (AB)4 (XO4)3 Zq � x(H2O)
  (42.11.14)Vauxite Group Vauxite FeAl2(PO4)2(OH)2•6(H2O) P1 1 Paravauxite FeAl2(PO4)2(OH)2•8(H2O) P1 1 Sigloite FeAl2(PO4)2(OH)3•5(H2O) P1 1 Gordonite MgAl2(PO4)2(OH)2•8(H2O) P1 1 Mangangordonite (Mn,Fe,Mg)Al2(PO4)2(OH)2•8(H2O) P1 1 Kastningite! (Mn,Fe,Mg)Al2(PO4)2(OH)2•8(H2O) P1 1 Maghrebite! MgAl2(AsO4)2(OH)2•8H2O P1 1
Help on  Strunz Class: Strunz Class: 08.DC.30 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.30 Gordonite MgAl2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Ferrolaueite! FeFe2(PO4)2(OH)2•8(H2O) Tri
08.DC.30 Mangangordonite (Mn,Fe,Mg)Al2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Laueite MnFe2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Sigloite FeAl2(PO4)2(OH)3•5(H2O) P1 1
08.DC.30 Pseudolaueite MnFe2(PO4)2(OH)2•7-8(H2O) P 21/a 2/m
08.DC.30 Paravauxite FeAl2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Stewartite MnFe2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Ushkovite MgFe2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Kastningite! (Mn,Fe,Mg)Al2(PO4)2(OH)2•8(H2O) P1 1
08.DC.30 Maghrebite! MgAl2(AsO4)2(OH)2•8H2O P1 1

Other Kastningite Information

Help on See Also: See Also: Links to other databases for Kastningite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info

Search for Kastningite using:

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

Visit our Advertisers for Kastningite :

Ask about Kastningite 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 Espaol

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


(Mn++,Fe++,Mg)Al2(PO4 )2(OH)2•8(H2O)
Dana No: Strunz No: 08.DC.30





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