Sibirskite Mineral Data

General Sibirskite Information

Chemical Formula:

CaHBO3

Composition:

Molecular Weight = 99.89 gm

Calcium 40.12 % Ca 56.14 % CaO

Boron 10.82 % B 34.85 % B₂O₃

Hydrogen 1.01 % H 9.02 % H₂O

Oxygen 48.05 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

CaH(BO₃)

IMA Status:

Approved IMA 1962

Locality:

Yuliya Svintsoviya deposit, Khakassy (Khakassiya) District, Siberia, Russia Link to MinDat.org Location Data.

Name Origin:

Named for Siberia (sibirski).

Name Pronunciation:

Sibirskite + Pronunciation

Sibirskite Image

Images:

Sibirskite

Comments: Translucent granular sibirskite.
Location: Novofrolovskoye, Sverdlovsk District, Northern Urals, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Sibirskite Crystallography

Axial Ratios:

a:b:c =0.9075:1:0.3745

Cell Dimensions:

a = 8.643, b = 9.523, c = 3.567, Z = 4; beta = 119.23° V = 256.21 Den(Calc)= 2.59

Crystal System:

Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 2₁/a

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.606(1)(021 ), 2.956(0.81)(220 ), 2.959(0.72)(011 ),3.771(0.36)(200 ), 2.727(0.33)(2ï¿½21), 5.913(0.33)(110 ), 4.762(0.29)(020 ), 2.223(0.25)(320 ), 1.891(0.21)(041 ),

Physical Properties of Sibirskite

Color:

Colorless, Dark gray.

Diaphaneity:

Transparent

Luster:

Vitreous (Glassy)

Streak:

white

Optical Properties of Sibirskite

Gladstone-Dale:

CI calc= -0.069 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2389,KC= 0.2235
Ncalc = 1.58

Optical Data:

Biaxial (-), a=1.555, b=1.643, g=1.658, bire=0.1030, 2V(Calc)=42, 2V(Meas)=43.

Calculated Properties of Sibirskite

Electron Density:

Bulk Density (Electron Density)=2.59 gm/cc
note: Specific Gravity of Sibirskite =2.59 gm/cc.

Fermion Index:

Fermion Index = 0.02
Boson Index = 0.98

Photoelectric:

PE_Sibirskite= 5.05 barns/electron
U=PE_Sibirskite x rElectron Density= 13.09 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sibirskite is Not Radioactive

Sibirskite Classification

Dana Class:

25.02.02.01 (25)Anhydrous Borates Containing Hydroxyl or Halogen

(25.02)Dana Type

(25.02.02)Dana Group

25.02.02.01 Sibirskite CaHBO3 P 2₁/a 2/m

Strunz Class:

06.BC.20 06 - BORATES

06.B - Diborates

06.BC -Ino-diborates with triangles and/or tetrahedra

06.BC.20 Parasibirskite! Ca2B2O5•(H2O) P 2₁/m 2/m

06.BC.20 Sibirskite CaHBO3 P 2₁/a 2/m

Other Sibirskite Information

References:

PHYS. PROP.(Dana8, AmMin v93:1691) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Sibirskite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Print or Cut-and-Paste your Sibirskite Specimen Label here :

Sibirskite

CaHBO3
Dana No: 25.02.02.01 Strunz No: 06.BC.20
Locality:

Notes:

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