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Droninoite Mineral Data

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General Droninoite Information

Help on Chemical  Formula: Chemical Formula: Ni3Fe+++Cl(OH)8•2H2O
Help on Composition: Composition: Molecular Weight = 442.09 gm
   Iron      21.73 %  Fe   12.19 % FeO / 17.52 % Fe2O3
   Nickel    28.68 %  Ni   36.49 % NiO
   Hydrogen   2.66 %  H    23.76 % H2O
   Chlorine  12.99 %  Cl   12.99 % Cl
               -   %   Cl   -2.93 % -O=Cl2   
   Oxygen    33.95 %  O
            ______        ______ 
            100.00 %      100.02 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ni2.16Fe2+0.75Fe3+0.97Cl1.62(OH)7.1•2.28(H2O)
Help on Environment: Environment: Terrestrial alteration of an iron meteorite. Hydrotalcite group.
Help on IMA Status: IMA Status: Approved IMA 2008 (Dana # Added)
Help on Locality: Locality: Dronino village, Kasimov District, Ryazan� Oblast, 350 km south-east of Moscow, Russia Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Synonym: Synonym: IMA2008-003

Droninoite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:7.44183
Help on Cell Dimensions: Cell Dimensions: a = 6.206, c = 46.184, Z = 6; V = 1,540.44 Den(Calc)= 2.86
Help on Crystal System: Crystal System: Trigonal Space Group: R 3m, R 3m or R 32
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.76(1), 3.88(0.4), 2.64(0.25),2.32(0.2), 1.965(0.15), 1.337(0.1), 1.536(0.1), 1.546(0.1),

Physical Properties of Droninoite

Help on Color: Color: Dark green, Brown.
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Friable - Loosley cohesive material that granulates with your fingers.
Help on Hardness: Hardness: 1-1.5 - Talc or a little harder
Help on Luster: Luster: Earthy (Dull)

Optical Properties of Droninoite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.047 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2517,KC= 0.2642
Ncalc = 1.76
Help on Optical Data: Optical Data: Uniaxial (?), a=1.72.

Calculated Properties of Droninoite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.84 gm/cc
note: Specific Gravity of Droninoite =2.86 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0080135914
Boson Index = 0.9919864086
Help on Photoelectric: Photoelectric: PEDroninoite = 18.49 barns/electron
U=PEDroninoite x rElectron Density= 52.50 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Droninoite is Not Radioactive

Droninoite Classification

Help on  Dana Class: Dana Class: 16b.06.02.05 (16b)Carbonates - Hydroxyl or Halogen
  (16b.06)Dana Type
  (16b.06.02)Sjorgrenite-Hydrotalcite Group (Hydrotalcite Subgroup:Rhombohedral)
16b.06.02.01 Hydrotalcite Mg6Al2(CO3)(OH)16•4(H2O) R 3m 3 2/m
16b.06.02.02 Stichtite Mg6Cr2(CO3)(OH)16•4(H2O) R 3m 3 2/m
16b.06.02.03 Pyroaurite Mg6Fe2(CO3)(OH)16•4(H2O) R 3m 3 2/m
16b.06.02.04 Desautelsite Mg6Mn2(CO3)(OH)16•4(H2O) R 3m or R 3m Trig
16b.06.02.05 Droninoite! Ni3FeCl(OH)8•2H2O R 3m, R 3m or R 32 Trig
Help on  Strunz Class: Strunz Class: 03.DA.60 03 - HALIDES
  03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
  03.DA -With Cu, etc., without Pb
03.DA.60 Droninoite! Ni3FeCl(OH)8•2H2O R 3m, R 3m or R 32 Trig

Other Droninoite Information

Help on References: References: NAME( Proceedings of the Russian Min. Soc. V137:38) PHYS. PROP.(Proceedings of the Russian Min. Soc. V137:38)
Help on See Also: See Also: Links to other databases for Droninoite :
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

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Dana No: 16b.06.02.05 Strunz No: 03.DA.60





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