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Chukanovite

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Dr. Nikita V. Chukanov
Formula:
Fe22+(CO3)(OH)2
System:
Monoclinic
Colour:
pale green to brownish ...
Hardness:
3½ - 4
Name:
Honours Nikita V. Chukanov (b. 1953), Russian physicist and mineralogist, a specialist in infrared spectroscopy.
Rosasite Group.
Product of terrestrial alteration of meteorite iron.
Also observed as an anthropogenic corrosion product in the hot-water exchanger of an industrial plant in Beringen, Switzerland (Erdös & Altorfer, 1976).

Classification of Chukanovite

Approved 2005
5.BA.10

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
A : With Cu, Co, Ni, Zn, Mg, Mn
16a.3.2.2

16a : ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
3 : (AB)2(XO3)Zq
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http://www.mindat.org/min-28917.html
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Type Occurrence of Chukanovite

Geological Setting of Type Material:
Terrestrialized (weathered) iron meteorite.
Associated Minerals at Type Locality:

Physical Properties of Chukanovite

Colour:
pale green to brownish green and brown
Comment:
turns brown by oxidation within a few months
Streak:
white to pale yellow
Hardness (Mohs):
3½ - 4
Cleavage:
Very Good
Density:
3.60 g/cm3 (Measured)    

Crystallography of Chukanovite

Crystal System:
Monoclinic
Cell Parameters:
a = 9.639Å, b = 12.226Å, c = 6.492Å
β = 96.06°
Ratio:
a:b:c = 0.788 : 1 : 0.531
Unit Cell Volume:
V 760.78 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction Data:
d-spacingIntensity
5.15 (60)
3.73 (80)
2.64 (100)

Chemical Properties of Chukanovite

Formula:
Fe22+(CO3)(OH)2
Essential elements:
All elements listed in formula:

Relationship of Chukanovite to other Species

5.BA.05AzuriteCu3(CO3)2(OH)2
5.BA.10GeorgeiteCu2(CO3)(OH)2 · 6H2O
5.BA.10Glaukosphaerite(Cu,Ni)2(CO3)(OH)2
5.BA.10Kolwezite(Cu,Co)2(CO3)(OH)2
5.BA.10MalachiteCu2(CO3)(OH)2
5.BA.10Mcguinnessite(Mg,Cu)2(CO3)(OH)2
5.BA.10NullaginiteNi2(CO3)(OH)2
5.BA.10PokrovskiteMg2(CO3)(OH)2
5.BA.10Rosasite(Cu,Zn)2(CO3)(OH)2
5.BA.10Zincrosasite(Zn,Cu)2(CO3)(OH)2
5.BA.15Aurichalcite(Zn,Cu)5(CO3)2(OH)6
5.BA.15HydrozinciteZn5(CO3)2(OH)6
5.BA.20HoldawayiteMn6(CO3)2(OH)7(Cl,OH)
5.BA.25DeferniteCa6(CO3)2-x(SiO4)x(OH)7(Cl,OH)1-2x (x<0.5)
5.BA.25UM1977-03-COSiO:CaClHCa10(SiO4)(CO3)7(Cl,OH)2
5.BA.30Loseyite(Mn2+,Zn,Mg)4Zn3(CO3)2(OH)10
5.BA.30Sclarite(Zn,Mg,Mn2+)4Zn3(CO3)2(OH)10

Other Names for Chukanovite

Name in Other Languages:
Simplified Chinese:铁孔雀石

Other Information

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for Chukanovite

Reference List:
Erdös, E. & Altorfer, H. (1976): Werkstoffe und Korrosion, 27, 304-312.

Pekov, I.V., Perchiazzi, N., Merlino, S., Kalachev, V.N., Merlini, M., Aleksandr E. Zadov, A.E. (2007): Chukanovite, Fe2(CO3)(OH)2, a new mineral from the weathered iron meteorite Dronino. European Journal of Mineralogy, 19, 891-898.

Internet Links for Chukanovite

Localities for Chukanovite

(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Russia (TL)
 
  • North-Western Region
    • Ryazanskaya Oblast'
      • Kasimov District
IMA website; Pekov, I.V. et al (2007) European Journal of Mineralogy, 19, 891-898.
Mineral and/or Locality  
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