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Sibirskite

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About SibirskiteHide

Formula:
Ca2(HB2O5)(OH)
Colour:
Colourless, dark grey (when included by chlorite)
Lustre:
Vitreous
Crystal System:
Monoclinic
Name:
Named after its discovery locality in Siberia (Sibirski in Russian)
Isostructural with:
This page provides mineralogical data about Sibirskite.


Classification of SibirskiteHide

Approved, 'Grandfathered' (first described prior to 1959)
6.BC.20

6 : BORATES
B : Diborates
C : Ino-diborates with triangles and/or tetrahedra
25.2.2.1

25 : ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
2 : Diborates
9.3.2

9 : Borates
3 : Borates of Ca and Sr

Physical Properties of SibirskiteHide

Vitreous
Transparency:
Transparent
Colour:
Colourless, dark grey (when included by chlorite)

Optical Data of SibirskiteHide

Type:
Biaxial (-)
RI values:
nα = 1.555 nβ = 1.643 nγ = 1.658
2V:
Measured: 43° , Calculated: 42°
Max Birefringence:
δ = 0.103
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
none

Chemical Properties of SibirskiteHide

Formula:
Ca2(HB2O5)(OH)
IMA Formula:
CaH(BO3)

Crystallography of SibirskiteHide

Crystal System:
Monoclinic

Type Occurrence of SibirskiteHide

Other Language Names for SibirskiteHide

Related Minerals - Nickel-Strunz GroupingHide

6.BC.10CalciboriteCa(B2O4)Orth.
6.BC.15VimsiteCaB2O2(OH)4Mon.
6.BC.20ParasibirskiteCa2(B2O5) · H2OMon.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

9.3.1CalciboriteCa(B2O4)Orth.
9.3.3FabianiteCaB3O5OHMon. 2/m : P21/b
9.3.4UralboriteCa2[B3O3(OH)5 · OB(OH)3]Mon.
9.3.5VimsiteCaB2O2(OH)4Mon.
9.3.6OlshanskyiteCa2[B3O3(OH)6](OH) · 3H2O
9.3.7FroloviteCa[B(OH)4]2Tric.
9.3.8KorzhinskiteCa(B2O4) · H2O
9.3.9TyretskiteCa2B5O9OH · H2OTric.
9.3.10NifontoviteCa3B6O6(OH)12(H2O)2Mon.
9.3.12InyoiteCa(H4B3O7)(OH) · 4H2OMon. 2/m
9.3.13GoweriteCa[B5O8(OH)][B(OH)3] · 3H2OMon.
9.3.14ColemaniteCa[B3O4(OH)3] · H2OMon. 2/m : P21/b
9.3.15PentahydroboriteCaB2O(OH)6 · 2H2OTric.
9.3.16HexahydroboriteCa[B(OH)4]2 · 2H2O or CaB2O4 · 6H2OMon. 2/m : B2/b
9.3.17MeyerhofferiteCa2(H3B3O7)2 · 4H2OTric. 1 : P1
9.3.18PriceiteCa2B5O7(OH)5 · H2OMon. 2/m : P21/b
9.3.19GinoriteCa2B14O20(OH)6 · 5H2OMon.
9.3.20ProbertiteNaCaB5O7(OH)4 · 3H2OMon. 2/m
9.3.21UlexiteNaCa[B5O6(OH)6] · 5H2OTric. 1 : P1
9.3.22HydroboraciteCaMg[B3O4(OH)3]2 · 3H2OMon.
9.3.23InderboriteCaMg(H3B3O7)2 · 8H2OMon. 2/m
9.3.24WardsmithiteCa5Mg[B4O7]6 · 30H2OHex.
9.3.25HenmiliteCa2Cu[B(OH)4]2(OH)4Tric.
9.3.26StrontioboriteSrB8O11(OH)4Mon.
9.3.27VeatchiteSr2B11O16(OH)5 · H2OMon. m : Bb
9.3.28Veatchite-ASr2B11O16(OH)5 · H2OTric.
9.3.29 P-VeatchiteSr2B11O16(OH)5 · H2O
9.3.30 BalavinskiteSr2B6O11 · 4H2O
9.3.31TunelliteSrB6O9(OH)2 · 3H2OMon. 2/m : P21/b
9.3.32StrontioginoriteCaSrB14O20(OH)6 · 5H2OMon. 2/m : P21/b

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 SibirskiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1962) 91: 455.
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1996) 125(4): 60-71.
American Mineralogist (1963) 48: 433.
Grew, E.S., and Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
Miura, H. & Kusachi, I. (2008) Journal of Mineralogical and Petrological Sciences, 103, 156-160.

Internet Links for SibirskiteHide

Localities for SibirskiteHide

ⓘ - 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.
Japan
 
  • Honshu Island
    • Chugoku Region
      • Okayama Prefecture
        • Takahashi City
          • Bicchu-cho (Bitchu-cho)
            • Fuka
Mineralogical Record: 27: 306.; Journal of Mineralogical and Petrological Sciences Vol. 99 (2004) , No. 2 April 67-71; I. Kusachi, Y. Takechi, C. Henmi and S. Kobayashi (1998) Parasibirskite, a New Mineral from Fuka, Okayama Prefecture, Japan. Mineralogical Magazine 62:521-525.
Russia (TL)
 
  • Khakassia Republic (Khakassy Republic; Khakassiya Republic)
[AmMin 82:822]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow
  • Urals Region
    • Middle Urals
      • Sverdlovskaya Oblast'
        • Krasnotur'insk (Bogolovsk; Krasnoturjinsk; Krasnoturyinsk)
          • Turya river
            • Tur'insk
[AmMin 82:822]; 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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