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Chesnokovite

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Big Photo

Kedykverpakhk Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
© Pavel M. Kartashov




Formula:
Na
 
2
[SiO
 
2
(OH)
 
2
] · 8H
 
2
O
System:Orthorhombic
Name:
In honor of Russian mineralogist Boris Valentinovich Chesnokov (11 June 1928 - 25 October 2005).


Alters to Thermonatrite and Opal when left exposed to normal atmospheric humidity.

Classification of Chesnokovite

IMA status:Approved 2006
Strunz 8th edition ID:8/A.0-
Nickel-Strunz 10th (pending) edition ID:9.AC.20

9 : SILICATES (Germanates)
A : Nesosilicates
C : Nesosilicates without additional anions; cations in octahedral [6] coordination
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Type Occurrence of Chesnokovite

Type Locality:Kedykverpakhk Mt, Lovozero Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia
General Appearance of Type Material:colorless to pale brownish aggregates of small, coarsely lamellar crystals
Geological Setting of type material:Ussingite vein
Associated Minerals at type locality:
Ussingite

Crystallography of Chesnokovite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Ibca {I2/b 2/c 2/a}
Cell Parameters:a = 11.7119Å, b = 16.973Å, c = 11.5652Å
Ratio:a:b:c = 0.69 : 1 : 0.681
Unit Cell Volume:V 2,299.00 ų (Calculated from Unit Cell)
X-Ray Powder Diffraction:
d-spacingIntensity
5.001 (30)
4.788 (42)
3.847 (89)
2.932 (42)
2.832 (35)
2.800 (97)
2.774 (100)
2.035 (20)

Chemical Properties of Chesnokovite

Formula:
Na
 
2
[SiO
 
2
(OH)
 
2
] · 8H
 
2
O
Essential elements:H, Na, O, Si
All elements listed in formula:H, Na, O, Si

Relationship of Chesnokovite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
9.AC.05Fayalite
Fe
2+
2
SiO
 
4
9.AC.05Forsterite
Mg
 
2
SiO
 
4
9.AC.05Glaucochroite
CaMn
2+
 
SiO
 
4
9.AC.05Kirschsteinite
CaFe
2+
 
SiO
 
4
9.AC.05Laihunite
Fe
2+
 
Fe
3+
2
(SiO
 
4
)
 
2
9.AC.05Liebenbergite
(Ni,Mg)
 
2
SiO
 
4
9.AC.05Tephroite
Mn
2+
2
SiO
 
4
9.AC.10Monticellite
CaMgSiO
 
4
9.AC.15Ringwoodite
(Mg,Fe
2+
 
)
 
2
SiO
 
4

Other Names for Chesnokovite

Synonyms:
IMA2006-007
Other Languages:
Russian:Чесноковит

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 Chesnokovite

Reference List:

- +
Pekov, I.V., Chukanov, N.V., Zadov, A.E., Zubkova, N.V., Pushcharovsky, D.Yu. (2007): Chesnokovite, Na2[SiO2(OH)2]•8H2O, the first natural sodium orthosilicate from the Lovozero alkaline massif, Kola Peninsula, Russia: description and crystal structure of a new mineral. Proceedings of the Russian Mineralogical Society (Zapiski RMO), 136(2), 25-39.

Internet Links for Chesnokovite

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    • Localities for Chesnokovite

    Hide Locality List
    (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
     
    • Northern Region
      • Murmanskaja Oblast'
        • Kola Peninsula
          • Lovozero Massif
    		IMA website
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