Mineralogy Database

Avdoninite Mineral Data

Search Webmineral :

General Avdoninite Information

Help on Chemical  Formula: Chemical Formula: K2Cu5Cl8(OH)4•H2O
Help on Composition: Composition: Molecular Weight = 765.55 gm
   Potassium  10.01 %  K    12.06 % K2O
   Copper     41.50 %  Cu   51.95 % CuO
   Hydrogen    0.78 %  H     6.98 % H2O
   Chlorine   37.46 %  Cl   37.46 % Cl
                -   %   Cl   -8.45 % -O=Cl2   
   Oxygen     10.24 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: K1.96Cu5Cl8.09(OH)3.87•1.03(H2O)
Help on Environment: Environment: Fumarole exhalation sediments.
Help on IMA Status: IMA Status: Approved IMA 2005 (Dana # Added)
Help on Locality: Locality: Yadovitaya fumarole in the Second Cinder Cone at the Northern Breach of the Great Fissure Tolbachik Eruption, Tolbachik volcano, Kamchatka Peninsula, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Vladimir Nikolaevich Avdonin (b 1925), a senior researcher of the Ural Geological Museum of the Ural State Mining University.
Help on Synonym: Synonym: IMA2005-046a

Avdoninite Image

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


Comments: Aggregates of green avdoninite crystals.
Location: Blyava Cu Mine, Southern Urals, Russia. Scale: Specimen size 1.5 x 2 cm.
© Diederik Visser

Avdoninite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =4.1408:1:1.9778
Help on Cell Dimensions: Cell Dimensions: a = 24.34, b = 5.878, c = 11.626, Z = 4; beta = 86.7° V = 1,660.58 Den(Calc)= 3.06
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2/m or P 21/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 11.63(1), 5.8(0.27), 5.88(0.2),2.518(0.19), 2.321(0.17), 5.73(0.17), 3.052(0.15), 5.12(0.12),

Physical Properties of Avdoninite

Help on Color: Color: Green.
Help on Density: Density: 3.03
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Tabular - Form dimensions are thin in one direction.
Help on Hardness: Hardness: 3 - Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: pale green

Optical Properties of Avdoninite

Help on Optical Data: Optical Data: Biaxial (+/-), a=1.669, b=1.688, g=1.707, bire=0.0380

Calculated Properties of Avdoninite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.92 gm/cc
note: Specific Gravity of Avdoninite =3.06 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0000623384
Boson Index = 0.9999376616
Help on Photoelectric: Photoelectric: PEAvdoninite = 21.88 barns/electron
U=PEAvdoninite x relectron= 63.82 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 137.68 (Gamma Ray American Petroleum Institute Units)
Concentration of Avdoninite per GRapi unit = 0.73 (%)

Estimated Radioactivity from Avdoninite - barely detectable


Avdoninite Classification

Help on  Dana Class: Dana Class: (12)Compound Halides
  (12.01)with miscellaneous anions
  (12.01.12)Dana Group Avdoninite! K2Cu5Cl8(OH)4•H2O P 2/m or P 21/m 2/m
Help on  Strunz Class: Strunz Class: 03.DA.55 03 - HALIDES
  03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
  03.DA -With Cu, etc., without Pb
03.DA.55 Avdoninite! K2Cu5Cl8(OH)4•H2O P 2/m or P 21/m 2/m

Other Avdoninite Information

Help on References: References: NAME( Geology of Ore Deposits, v49:505) PHYS. PROP.(Geology of Ore Deposits, v49:505) OPTIC PROP.(Geology of Ore Deposits, v49:505)
Help on See Also: See Also: Links to other databases for Avdoninite :
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 Avdoninite using:

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

Visit our Advertisers for Avdoninite :

Ask about Avdoninite 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 Avdoninite Specimen Label here :


Dana No: Strunz No: 03.DA.55





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