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Chukanovite Mineral Data

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General Chukanovite Information

Help on Chemical  Formula: Chemical Formula: Fe2(CO3)(OH)2
Help on Composition: Composition: Molecular Weight = 206.88 gm
   Magnesium   0.12 %  Mg    0.19 % MgO
   Iron       53.18 %  Fe   68.41 % FeO
   Nickel      0.57 %  Ni    0.72 % NiO
   Hydrogen    1.22 %  H    10.88 % H2O
   Carbon      5.40 %  C    19.78 % CO2
   Oxygen     39.52 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+1.97Ni0.02Mg0.01(CO3)0.93(OH)2.14(H2O)0.18
Help on Environment: Environment: Product of terrestrial alteration of found in cavities in a meteorite (ataxite iron meteorite mainly consisting of kamacite and containing minor amounts of taenite and chromite). Ma lachite group.
Help on IMA Status: IMA Status: Approved IMA 2005 (Dana # Added)
Help on Locality: Locality: Dronino meteorite, Kasimov District, Ryazan Oblast, Russia Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Nikita V. Chukanov (b. 1953), Russian physicist and mineralogist.
Help on Synonym: Synonym: IMA2005-039

Chukanovite Image

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Comments: Left - acicular to fibrous individuals of chukanovite. Right - spherulites of chukanovite up to 1 mm (Eur. J. Mineral, v19:891).
Location: Found in cavities of weathered fragments of the Dronino ataxite iron eteorite found near the Dronino village, Kasimov district, Ryazan’ Oblast, Russia. Scale: See Images.
© Eur. J. Mineral

Chukanovite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.3177:1:0.3417
Help on Cell Dimensions: Cell Dimensions: a = 12.396, b = 9.407, c = 3.2152, Z = 4; beta = 97.78° V = 371.47 Den(Calc)= 3.70
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.645(1)(230), 3.73(0.8)(310), 5.15(0.6)(231),2.171(0.4)(520), 2.361(0.4)(510), 6.14(0.4)(200),

Physical Properties of Chukanovite

Help on Cleavage: Cleavage: {021} Perfect
Help on Color: Color: Pale green, Colorless.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Hardness: Hardness: 3.5-4 - Copper Penny-Fluorite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Chukanovite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.042 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2003,KC= 0.209
Ncalc = 1.77
Help on Optical Data: Optical Data: Biaxial (-), a=1.673, b=1.77, g=1.78, bire=0.1070

Calculated Properties of Chukanovite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.61 gm/cc
note: Specific Gravity of Chukanovite =3.70 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEChukanovite = 16.18 barns/electron
U=PEChukanovite x rElectron Density= 58.36 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chukanovite is Not Radioactive

Chukanovite Classification

Help on  Dana Class: Dana Class: 16a.03.02.04 (16a)Carbonates - Hydroxyl or Halogen
  (16a.03)where (A B)2 (XO3) Zq
  (16a.03.02)Malachite Group
16a.03.02.01 Malachite Cu2(CO3)(OH)2 P 21/a 2/m
16a.03.02.02 Nullaginite Ni2(CO3)(OH)2 P 21/m,P 21 Mono
16a.03.02.03 Pokrovskite Mg2(CO3)(OH)2•0.5(H2O) P 21/a 2/m
16a.03.02.04 Chukanovite! Fe2(CO3)(OH)2 P 21/a 2/m
Help on  Strunz Class: Strunz Class: 05.BA.10 05 - CARBONATES (NITRATES)
  05.B - Carbonates with additional anions, without H2O
  05.BA -With Cu, Co, Ni, Zn, Mg, Mn
05.BA.10 Nullaginite Ni2(CO3)(OH)2 P 21/m,P 21 Mono
05.BA.10 Georgeite Cu5(CO3)3(OH)4•6(H2O) None
05.BA.10 Malachite Cu2(CO3)(OH)2 P 21/a 2/m
05.BA.10 Glaukosphaerite (Cu,Ni)2(CO3)(OH)2 P 21/a 2/m
05.BA.10 Mcguinnessite (Mg,Cu)2(CO3)(OH)2 P 2/a or P 21/a 2/m
05.BA.10 Kolwezite (Cu,Co)2(CO3)(OH)2 P1 or P1 Tri
05.BA.10 Pokrovskite Mg2(CO3)(OH)2•0.5(H2O) P 21/a 2/m
05.BA.10 Rosasite (Cu,Zn)2(CO3)(OH)2 P 21/a 2/m
05.BA.10 Zincrosasite (Zn,Cu)2(CO3)(OH)2 P 21/a 2/m
05.BA.10 Chukanovite! Fe2(CO3)(OH)2 P 21/a 2/m

Other Chukanovite Information

Help on References: References: NAME( AmMin, v93:1687) PHYS. PROP.(AmMin, v93:1687) OPTIC PROP.(AmMin, v93:1687)
Help on See Also: See Also: Links to other databases for Chukanovite :
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: 16a.03.02.04 Strunz No: 05.BA.10





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