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Chukanovite

Formula:
Fe
2+
2
[(OH)
 
2
|CO
 
3
]
System:MonoclinicColour: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

IMA status:Approved 2005
Strunz 8th edition ID:5/C.01-95
Nickel-Strunz 10th (pending) edition ID:5.BA.10

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
A : With Cu, Co, Ni, Zn, Mg, Mn
Dana 8th edition ID:16a.3.2.2

16a : ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
3 : (AB)2(XO3)Zq
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Type Occurrence of Chukanovite

Type Locality:Dronino meteorite, Kasimov District, Ryazanskaya Oblast', North-Western Region, Russia
Geological Setting of type material:Terrestrialized (weathered) iron meteorite.
Associated Minerals at type locality:
Kamacite

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 (measured):3.60 g/cm3

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:
d-spacingIntensity
5.15 (60)
3.73 (80)

Chemical Properties of Chukanovite

Formula:
Fe
2+
2
[(OH)
 
2
|CO
 
3
]
Essential elements:
All elements listed in formula:C, Fe, H, O

Relationship of Chukanovite to other Species

Related Minerals - Nickel-Strunz Grouping):
5.BA.05Azurite
Cu
 
3
[OH|CO
 
3
]
 
2
5.BA.10Georgeite
Cu
 
2
[(OH)
 
2
|CO
 
3
] · 6H
 
2
O
5.BA.10Glaukosphaerite
(Cu,Ni)
 
2
[(OH)
 
2
|CO
 
3
]
5.BA.10Kolwezite
(Cu,Co)
 
2
[(OH)
 
2
|CO
 
3
]
5.BA.10Malachite
Cu
 
2
[(OH)
 
2
|CO
 
3
]
5.BA.10Mcguinnessite
(Mg,Cu)
 
2
[(OH)
 
2
|CO
 
3
]
5.BA.10Nullaginite
Ni
 
2
[(OH)
 
2
|CO
 
3
]
5.BA.10Pokrovskite
Mg
 
2
[(OH)
 
2
|CO
 
3
]
5.BA.10Rosasite
(Cu,Zn)
 
2
[(OH)
 
2
|CO
 
3
]
5.BA.10Zincrosasite
(Zn,Cu)
 
2
[(OH)
 
2
|CO
 
3
]
5.BA.15Aurichalcite
(Zn,Cu)
 
5
[(OH)
 
3
|CO
 
3
]
 
2
5.BA.15Hydrozincite
Zn
 
5
[(OH)
 
3
|CO
 
3
]
 
2
5.BA.20Holdawayite
Mn
 
6
(CO
 
3
)
 
2
(OH)
 
7
(Cl,OH)
5.BA.25Defernite
Ca
 
6
(CO
 
3
)
 
2-x
(SiO
 
4
)
 
x
(OH)
 
7
(Cl,OH)
 
1-2x
 (x=0.5)
5.BA.30Loseyite
(Zn,Mn
2+
 
)
 
7
[(OH)
 
5
|CO
 
3
]
 
2
5.BA.30Sclarite
(Zn,Mg,Mn
2+
 
)
 
4
Zn
 
3
[(OH)
 
5
|CO
 
3
]
 
2

Other Names for Chukanovite

Synonyms:
IMA2005-039

Other Information

Health Warning: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

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    Localities for Chukanovite

    (TL) indicates type locality. ? 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
     
    • 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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