Mineralogy Database

Kribergite Mineral Data

Search Webmineral :

General Kribergite Information

Help on Chemical  Formula: Chemical Formula: Al5(PO4)3(SO4)(OH)4•4(H2O)
Help on Composition: Composition: Molecular Weight = 655.98 gm
   Aluminum    20.57 %  Al   38.86 % Al2O3
   Phosphorus  14.17 %  P    32.46 % P2O5
   Hydrogen     1.84 %  H    16.48 % H2O
   Sulfur       4.89 %  S    12.21 % SO3
   Oxygen      58.54 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Al5(PO4)3(SO4)(OH)4•4(H2O)
Help on Environment: Environment: Vienlets.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1945
Help on Locality: Locality: Kristineberg mine, Vasterbotten, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Name Pronunciation: Name Pronunciation: Kribergite + Pronunciation Say KRIBERGITE

Kribergite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.3405:1:0.5547
Help on Cell Dimensions: Cell Dimensions: a = 18.123, b = 13.519, c = 7.5, Z = 2; alpha = 70.5°, beta = 117.87°, gamma = 136.23° V = 1,059.25 Den(Calc)= 2.06
Help on Crystal System: Crystal System: Triclinic Space Group: P1 or P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 11.6(1), 6.62(0.3), 5.02(0.3),2.86(0.1), 2.93(0.1), 5.37(0.1), 5.72(0.1), 5.85(0.1),

Physical Properties of Kribergite

Help on Color: Color: White.
Help on Density: Density: 1.92 - 1.94, Average = 1.93
Help on Luster: Luster: Earthy (Dull)
Help on Streak: Streak: white

Optical Properties of Kribergite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.153 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.147 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2495,KPDmeas= 0.2508,KC= 0.2175
Ncalc = 1.42
Help on Optical Data: Optical Data: Biaxial (?), b=1.484

Calculated Properties of Kribergite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.95 gm/cc
note: Specific Gravity of Kribergite =1.94 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0006503629
Boson Index = 0.9993496371
Help on Photoelectric: Photoelectric: PEKribergite = 1.61 barns/electron
U=PEKribergite x rElectron Density= 3.14 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kribergite is Not Radioactive

Kribergite Classification

Help on  Dana Class: Dana Class: (43)Compound Phosphates, etc.
  (43.05)(Hydrated Compound Anions With Hydroxyl or Halogen)
  (43.05.07)Dana Group Kribergite Al5(PO4)3(SO4)(OH)4•4(H2O) P1 or P1 Tri
Help on  Strunz Class: Strunz Class: 08.DC.52 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.52 Kribergite Al5(PO4)3(SO4)(OH)4•4(H2O) P1 or P1 Tri

Other Kribergite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Kribergite :
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 - MinDAT
10 - Mineralienatlas (Deutsch)
11 - Online Mineral Museum
12 - QUT Mineral Atlas
13 - Ruff.Info

Search for Kribergite using:

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

Visit our Advertisers for Kribergite :

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

Ask about Kribergite 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 Kribergite Specimen Label here :


Dana No: Strunz No: 08.DC.52