Buryatite  Mineral Data

Buryatite Mineral Data

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General Buryatite Information

Help on Chemical  Formula: Chemical Formula: Ca3(Si,Fe+++,Al)[SO4][B(OH)4](OH,O)6•12(H2O)
Help on Composition: Composition: Molecular Weight = 730.42 gm
   Calcium   16.46 %  Ca   23.03 % CaO
   Aluminum   0.37 %  Al    0.70 % Al2O3
   Iron       1.53 %  Fe    2.19 % Fe2O3
   Silicon    2.31 %  Si    4.94 % SiO2
   Boron      1.48 %  B     4.77 % B2O3
   Hydrogen   5.34 %  H    47.73 % H2O
   Sulfur     4.39 %  S    10.96 % SO3
   Oxygen    68.12 %  O
            ______        ______ 
            100.00 %       94.30 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca3Si0.6Fe3+0.2Al0.1(SO4)B(OH)14.7O0.4•12(H2O)
Help on Environment: Environment: Found in a drill core of a kurchatovite-sakhaite ore in the Solongo deposit. Ettringite group
Help on IMA Status: IMA Status: Approved IMA 2000 (Dana # Added)
Help on Locality: Locality: Solongo boron deposit, Buryatiya, Ural Mts, Russia. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality
Help on Synonym: Synonym: IMA2000-021
 

Buryatite Image

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Buryatite

Comments: Vitreous colorless buryatite on matrix.
Location: Solongo B deposit, Buriatia (Buryatia) Republic, Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Scale: Picture size 6 mm.
© Thomas Witzke / Abraxas-Verlag

Buryatite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.8842
Help on Cell Dimensions: Cell Dimensions: a = 11.14, c = 20.99, Z = 4; V = 2,255.87 Den(Calc)= 2.15
Help on Crystal System: Crystal System: Trigonal - Ditrigonal PyramidalH-M Symbol (3m) Space Group: P 31c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.596(1)(312), 2.121(0.9)(136), 3.04(0.8),9.7(0.8)(100), 1.498(0.7)(248), 1.833(0.6)(332), 2.374(0.6)(134), 2.736(0.6)(304), 3.85(0.6),
 

Physical Properties of Buryatite

Help on Cleavage: Cleavage: {100} Perfect
Help on Color: Color: Light violet gray.
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Help on Habit: Habit: Disseminated - Occurs in small, distinct particles dispersed in matrix.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous - Dull
Help on Streak: Streak: white
 

Optical Properties of Buryatite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.052 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2453,KC= 0.2589
Ncalc = 1.56
Help on Optical Data: Optical Data: Uniaxial (+), w=1.523, e=1.532, bire=0.0090.
 

Calculated Properties of Buryatite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.26 gm/cc
note: Specific Gravity of Buryatite =2.15 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0052332237
Boson Index = 0.9947667763
Help on Photoelectric: Photoelectric: PEBuryatite = 2.91 barns/electron
U=PEBuryatite x rElectron Density= 6.56 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Buryatite is Not Radioactive
 

Buryatite Classification

Help on  Dana Class: Dana Class: 31.10.02.03 (31)Hydrated Sulfates Containing Hydroxyl or Halogen
  (31.10)miscellaneous
  (31.10.02)Dana Group
 
31.10.02.01 Ettringite Ca6Al2(SO4)3(OH)12•26(H2O) P 63/mmc 6/m 2/m 2/m
 
31.10.02.02 Bentorite Ca6(Cr,Al)2(SO4)3(OH)12•26(H2O) P 63/mmc 6/m 2/m 2/m
 
31.10.02.03 Buryatite! Ca3(Si,Fe,Al)[SO4][B(OH)4](OH,O)6•12(H2O) P 31c 3m
Help on  Strunz Class: Strunz Class: 07.DG.15 07 - SULFATES (SELENATES, TELLURATES)
  07.D - Sulfates (selenates, etc.) with additional anions, with H2O
  07.DG -With large and medium sized cations; with NO3, CO3, B(OH)4, SiO4 or IO3
 
07.DG.15 Bentorite Ca6(Cr,Al)2(SO4)3(OH)12•26(H2O) P 63/mmc 6/m 2/m 2/m
 
07.DG.15 Charlesite Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12•26(H2O) P 31c 3m
 
07.DG.15 Ettringite Ca6Al2(SO4)3(OH)12•26(H2O) P 63/mmc 6/m 2/m 2/m
 
07.DG.15 Jouravskite Ca3Mn(SO4,CO3)2(OH)6•12(H2O) P 63/m 6/m
 
07.DG.15 Sturmanite Ca6(Fe,Al,Mn)2(SO4)2[B(OH)4](OH)12•25(H2O) P 31c 3m
 
07.DG.15 Thaumasite Ca3Si(CO3)(SO4)(OH)6•12(H2O) P 63/m 6/m
 
07.DG.15 Buryatite! Ca3(Si,Fe,Al)[SO4][B(OH)4](OH,O)6•12(H2O) P 31c 3m
 
07.DG.15 Carraraite! Ca3Ge(OH)6(SO4)(CO3)•12H2O P 63/m, or P 63 Hex
 

Other Buryatite Information

Help on References: References: NAME( AmMin, Vol 87, p 1509) PHYS. PROP.(AmMin, Vol 87, p 1509) OPTIC PROP.(AmMin, Vol 87, p 1509)
Help on See Also: See Also: Links to other databases for Buryatite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Buryatite

Ca3(Si,Fe+++,Al)[SO4][B(OH)4](OH,O)6•12(H2O)
Dana No: 31.10.02.03 Strunz No: 07.DG.15
Locality:

 

Notes: