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Chubarovite

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About ChubaroviteHide

Formula:
KZn2(BO3)Cl2
Colour:
Colorless
Lustre:
Vitreous
Hardness:
2
Specific Gravity:
2.68
Crystal System:
Trigonal
Name:
Named in honor of the Russian mineralogist and physicist Valeriy M. Chubarov (born 1948).
This page provides mineralogical data about Chubarovite.


Classification of ChubaroviteHide

Approved
Approval Year:
2014

Physical Properties of ChubaroviteHide

Vitreous
Colour:
Colorless
Streak:
White
Hardness:
Comment:
Ca 2
Tenacity:
Flexible
Cleavage:
Perfect
on (001) (micalike)
Density:
2.68 g/cm3 (Measured)    2.716 g/cm3 (Calculated)

Optical Data of ChubaroviteHide

Type:
Uniaxial (-)
RI values:
nω = 1.541() nε = 1.539(2)
Max Birefringence:
δ = 0.002
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of ChubaroviteHide

Formula:
KZn2(BO3)Cl2

Crystallography of ChubaroviteHide

Crystal System:
Trigonal
Class (H-M):
3 2 - Trapezohedral
Space Group:
R3 2
Setting:
R3 2
Cell Parameters:
a = 4.9431(4) Å, c = 26.346(2) Å
Ratio:
a:c = 1 : 5.33
Unit Cell V:
557.50 ų (Calculated from Unit Cell)
Morphology:
Hexagonal or trigonal lamellar to tabular crystals up to 1.5 mm across and up to 0.5 mm thick, with aggregates and crystal crusts up to 1 cm across. Forms observed: The the pinacoid {001}, and lateral faces are represented by rhombohedra {101}, {102}, {103}, {100}, and {110}; twins of two types are observed.
Twinning:
X-shaped penetration twins on (103); Contact twins with the single composition surface {001}, with the axis [001] and rotation angle 180°.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.79(100)
4.394(43)
4.225(25)
4.074(91)
3.590(90)
3.324(30)
2.470(67)
2.245(25)
Comments:
From Type Description.

Type Occurrence of ChubaroviteHide

General Appearance of Type Material:
As hexagonal or trigonal lamellar to tabular crystals formed by the pinacoidal and rhombohedral faces, sometimes with subordinate prismatic faces.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4541/1
Geological Setting of Type Material:
In sublimates of active fumaroles.
Associated Minerals at Type Locality:

Synonyms of ChubaroviteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Fluoborite2 photos of Chubarovite associated with Fluoborite on mindat.org.

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 ChubaroviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pekov, I.V., Zubkova, N.V., Pautov, L.A., Yapaskurt, V.O., Chukanov, N.V., Lykova, I.S., Britvin, S.N., Sidorov, E.G. and Pushcharovsky, D.Y. (2014) Chubarovite, IMA 2014-018. CNMNC Newsletter No. 21, August 2014, page 799; Mineralogical Magazine, 78, 797-804.
Pekov, I.V., Zubkova, N.V., Pautov, L.A., Yapaskurt, V.O., Chukanov, N.V., Lykova, I.S., Britvin, S.N., Sidorov, E.G. and Pushcharovsky, D.Y. (2015): Chubarovite,KZn2(BO3)Cl2, a new mineral species from the Tolbachik volcano, Kamchatka, Russia. Canadian Mineralogist. 53: 273-284

Internet Links for ChubaroviteHide

Localities for ChubaroviteHide

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
 
  • Far-Eastern Region
    • Kamchatka Oblast'
      • Tolbachik volcano
        • Great Fissure eruption (Main Fracture)
          • Northern Breakthrough (North Breach)
Pekov, I.V., Zubkova, N.V., Pautov, L.A., Yapaskurt, V.O., Chukanov, N.V., Lykova, I.S., Britvin, S.N., Sidorov, E.G. and Pushcharovsky, D.Y. (2015): Chubarovite,KZn2(BO3)Cl2, a new mineral species from the Tolbachik volcano, Kamchatka, Russia. Canadian Mineralogist. 53: 273-284.
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Britvin, S.N., Vigasina, M.F., Sidorov, E.G., Pushcharovsky, D.Y. (2015): New zinc and potassium chlorides from fumaroles of the Tolbachik volcano, Kamchatka, Russia: mineral data and crystal chemistry. II. Flinteite, K2ZnCl4. European Journal of Mineralogy, 27, 581-588.; Pekov, I. V., Zubkova, N. V., Britvin, S. N., Yapaskurt, V. O., Chukanov, N. V., Lykova, I. S., ... & Pushcharovsky, D. Y. (2015). New zinc and potassium chlorides from fumaroles of the Tolbachik volcano, Kamchatka, Russia: mineral data and crystal chemistry. III. Cryobostryxite, KZnCl3· 2H2O. European Journal of Mineralogy, 27(6), 805-812
            • Second scoria cone
Pekov, I.V., Zubkova, N.V., Pautov, L.A., Yapaskurt, V.O., Chukanov, N.V., Lykova, I.S., Britvin, S.N., Sidorov, E.G. and Pushcharovsky, D.Y. (2014) Chubarovite, IMA 2014-018. CNMNC Newsletter No. 21, August 2014, page 799; Mineralogical Magazine, 78, 797-804.; Pekov, I.V., Zubkova, N.V., Pautov, L.A., Yapaskurt, V.O., Chukanov, N.V., Lykova, I.S., Britvin, S.N., Sidorov, E.G. and Pushcharovsky, D.Y. (2015): Chubarovite,KZn2(BO3)Cl2, a new mineral species from the Tolbachik volcano, Kamchatka, Russia. Canadian Mineralogist. 53: 273-284
Mineral and/or Locality  
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