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Georgbokiite

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About GeorgbokiiteHide

Georgiy B. Bokii
Formula:
Cu5(SeO3)2O2Cl2
Lustre:
Vitreous
Hardness:
4
Crystal System:
Monoclinic
Name:
In honour of Georgiy Borisovich Bokii (Георгия Борисовича Бокия) (26 September (9 October) 1909, St. Petersburg, Russian Empire - 4 September 2000, Moscow , Russia), crystal chemist, for his contributions to crystal chemistry and mineralogy. He was the first head of the Department of Crystallography and Crystallochemistry in the Geological Faculty of Moscow State University. He also worked at the Institute of Geology of Ore Deposits, Petrography, Mineralogy and Geochemistry of the USSR Academy of Sciences (IGEM).
Dimorph of:
This page provides mineralogical data about Georgbokiite.


Classification of GeorgbokiiteHide

Approved
Approval Year:
1996
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 GeorgbokiiteHide

Vitreous
Hardness:

Optical Data of GeorgbokiiteHide

Type:
Biaxial (-)
RI values:
nα = 2.060 nβ = 2.110 nγ = 2.150
Max Birefringence:
δ = 0.090
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r < v strong

Chemical Properties of GeorgbokiiteHide

Formula:
Cu5(SeO3)2O2Cl2
IMA Formula:
Cu5O2(Se4+O3)2Cl2

Crystallography of GeorgbokiiteHide

Crystal System:
Monoclinic

Type Occurrence of GeorgbokiiteHide

Synonyms of GeorgbokiiteHide

Other Language Names for GeorgbokiiteHide

Simplified Chinese:乔格波基石
Spanish:Georgbokiita

Related Minerals - Nickel-Strunz GroupingHide

4.JG.PrewittiteKPb1.5ZnCu6(SeO3)2O2Cl10Orth. mmm (2/m 2/m 2/m) : Pnnm
4.JG.05ParageorgbokiiteCu5(SeO3)2O2Cl2Mon. 2/m : P21/b
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 GeorgbokiiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Doklady Akademii Nauk: 364(4): 527-531.

Internet Links for GeorgbokiiteHide

Localities for GeorgbokiiteHide

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
[Doklady Akad. Nauk, 364(4), 527–531; Zeits. Kristallogr., 214(3), 135– 138.; MinRec 31:201]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
          • Northern Breakthrough (North Breach)
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Mandarino, J. A. (2003). New minerals. The Canadian Mineralogist, 41(3), 803-828.
          • Southern Breakthrough (South Breach)
Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
Mineral and/or Locality  
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