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Parageorgbokiite

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Georgiy B. Bokii
Formula:
Cu5(SeO3)2O2Cl2
Colour:
Green
Lustre:
Vitreous
Hardness:
3 - 4
Specific Gravity:
4.7 (Calculated)
Crystal System:
Monoclinic
Name:
Named from the Greek 'para' for near, and georgbokiite, for the polymorphic relationship to that mineral. The root name is for Georgiy Borisovich Bokii (1909-2000), Russian crystal chemist.
Dimorph of:
A volcanic fumarole mineral. Its temperature of formation is estimated to have been 400–625 °C.


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Classification of ParageorgbokiiteHide

Approved
Approval Year:
2006
First Published:
2006
4.JG.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
G : Selenites with additional anions, without H2O

Physical Properties of ParageorgbokiiteHide

Vitreous
Colour:
Green
Hardness:
3 - 4 on Mohs scale
Density:
4.7 g/cm3 (Calculated)

Chemical Properties of ParageorgbokiiteHide

Formula:
Cu5(SeO3)2O2Cl2
IMA Formula:
Cu5O2(SeO3)2Cl2

Crystallography of ParageorgbokiiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 5.3982 Å, b = 8.0543 Å, c = 11.128 Å
β = 99.258°
Ratio:
a:b:c = 0.67 : 1 : 1.382
Unit Cell V:
477.53 ų
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.01 (100)
3.22 (77)
4.8 (64)
4.33 (64)
2.54 (54)

Type Occurrence of ParageorgbokiiteHide

Geological Setting of Type Material:
Volcanic fumarole
Associated Minerals at Type Locality:
Reference:
Vergasova, L.P., Krivovichev, S.V., Filatov, S.K., Britvin, S.N., Burns, P.C., Ananyev, V.V. (2006) Parageorgbokiite, beta-Cu5O2(SeO3)2Cl2 – a new mineral from volcanic exhalation (Kamchatka Peninsula, Russia), Proceedings of the Russian Mineralogical Society: 135(4): 24–28.

Synonyms of ParageorgbokiiteHide

Other Language Names for ParageorgbokiiteHide

Simplified Chinese:副乔格波基石

Related Minerals - Nickel-Strunz GroupingHide

4.JG.PrewittiteKPb1.5ZnCu6(SeO3)2O2Cl10Orth. mmm (2/m 2/m 2/m) : Pnnm
4.JG.05GeorgbokiiteCu5(SeO3)2O2Cl2Mon.
4.JG.10ChloromeniteCu9(SeO3)4O2Cl6Mon.
4.JG.15SofiiteZn2(SeO3)Cl2Orth.
4.JG.20Ilinskite(Na,K)Cu5(SeO3)2O2Cl3Orth. mmm (2/m 2/m 2/m) : Pnma
4.JG.25FrancisiteCu3Bi(SeO3)2O2ClOrth. mmm (2/m 2/m 2/m) : Pmmn
4.JG.30DerriksiteCu4(UO2)(SeO3)2(OH)6
4.JG.35BurnsiteKCdCu2+7(SeO3)2O2Cl9
4.JG.40AllochalcoseliteCu+PbCu2+5(SeO3)2Cl5O2Mon. 2/m : B2/m

Other InformationHide

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 ParageorgbokiiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Vergasova, L.P., Krivovichev, S.V., Filatov, S.K., Britvin, S.N., Burns, P.C., Ananyev, V.V. (2006) Parageorgbokiite, beta-Cu5O2(SeO3)2Cl2 – a new mineral from volcanic exhalation (Kamchatka Peninsula, Russia), Proceedings of the Russian Mineralogical Society: 135(4): 24–28 (in Russian with English abstract).
Krivovichev, S.V., Filatov, S.K., Burns, P.C., Vergasova, L.P. (2007) The crystal structure of parageorgbokiite, β-Cu5O2(SeO3)2Cl2. Canadian Mineralogist: 45: 929-934.

Internet Links for ParageorgbokiiteHide

Localities for ParageorgbokiiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia (TL)
 
  • Far-Eastern Region
    • Kamchatka Oblast'
      • Tolbachik volcano
        • Great Fissure eruption (Main Fracture)
          • Northern Breakthrough (North Breach)
L. P. Vergasova, S. V. Krivovichev, S. K. Filatov, S. N. Britvin, P. C. Burns & V. V. Ananyev (2006): Parageorgbokiite, beta-Cu5O2(SeO3)2Cl2 – a new mineral from volcanic exhalation (Kamchatka Peninsula, Russia). Proceedings of the Russian Mineralogical Society 135(4), 24–28.
Mineral and/or Locality  
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