Baratovite  Mineral Data

Baratovite Mineral Data

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General Baratovite Information

Help on Chemical  Formula: Chemical Formula: KCa7(Ti,Zr)2Li3Si12O36F2
Help on Composition: Composition: Molecular Weight = 1,408.90 gm
   Potassium   2.78 %  K     3.34 % K2O
   Lithium     1.48 %  Li    3.18 % Li2O
   Calcium    19.91 %  Ca   27.86 % CaO
   Zirconium   3.24 %  Zr    4.37 % ZrO2
   Titanium    5.10 %  Ti    8.50 % TiO2
   Silicon    23.92 %  Si   51.18 % SiO2
   Oxygen     40.88 %  O
   Fluorine    2.70 %  F     2.70 % F
                -   %   F    -1.14 % -O=F2    
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: KCa7Ti1.5Zr0.5Li3Si12O36F2
Help on Environment: Environment: Occurs as an accessory mineral in quartz-albite-aegirine veinlets and in albitites in syenites. Isostructural with katayamalite and is the fluorine-rich endmember of the series.
Help on IMA Status: IMA Status: Approved IMA 1975
Help on Locality: Locality: From the Dara-I-Pioz massif, Alai Range, Tien Shan, Tadzhikistan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: For Rauf Baratovich Baratov, Soviet petrographer, of Tadzhikistan.
Help on Name Pronunciation: Name Pronunciation: Baratovite + Pronunciation Say BARATOVITE
Help on Synonym: Synonym: ICSD 100493
  PDF 33-811
 

Baratovite Image

Click Here for Larger Baratovite Image in a New Browser Window Images:
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Baratovite

Comments: Pale pink, pearly, micaceous baratovite in syenite rock.
Location: Dara-Pioz, Tien Shan, Tadzhikistan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Baratovite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.7381:1:2.1451
Help on Cell Dimensions: Cell Dimensions: a = 16.94, b = 9.746, c = 20.907, Z = 4; beta = 112.5° V = 3,188.94 Den(Calc)= 2.93
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.22(1), 1.92(0.2), 2.41(0.2),1.49(0.1), 1.6(0.1), 3.02(0.1), 3.54(0.1), 4.81(0.1),
Click Here for Large Baratovite Structure Window Crystal Structure:

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Menchetti S , Sabelli C , American Mineralogist , 64 (1979) p.383-389, The crystal structure of baratovite

View Additional jPOWD Structure files for Baratovite
[1]
 

Physical Properties of Baratovite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Pearl white.
Help on Density: Density: 2.92
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: white
 

Optical Properties of Baratovite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.022 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.019 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2295,KPDmeas= 0.2303,KC= 0.2252
Ncalc = 1.66
Help on Optical Data: Optical Data: Biaxial (+), a=1.672, b=1.672, g=1.673, bire=0.0010, 2V(Calc)=0, 2V(Meas)=60. Dispersion r > v strong.
 

Calculated Properties of Baratovite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.89 gm/cc
note: Specific Gravity of Baratovite =2.93 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEBaratovite = 8.73 barns/electron
U=PEBaratovite x relectron= 25.25 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 39.51 (Gamma Ray American Petroleum Institute Units)
Concentration of Baratovite per GRapi unit = 2.53 (%)

Estimated Radioactivity from Baratovite - barely detectable

 

Baratovite Classification

Help on  Dana Class: Dana Class: 61.01.04.01 (61)Cyclosilicate Six-Membered Rings
  (61.01)with [Si6O18] rings; possible (OH) and Al substitution
  (61.01.04)Baratovite group
 
61.01.04.01 Baratovite KCa7(Ti,Zr)2Li3Si12O36F2 C 2/c 2/m
 
61.01.04.02 Katayamalite (K,Na)Ca7Li3Ti2[Si6O18]2(OH,F)2 C1 1
 
61.01.04.03 Faizievite! K2Na(Ca6Na)Ti4Li6Si24O66F2 P1 1
 
61.01.04.04 IMA2009-004 KCa7Sn2Li3Si12O36F2 C 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.CJ.25 09 - SILICATES (Germanates)
  09.C - Cyclosilicates
  09.CJ -[Si6O18]12- 6-membered single rings (sechser-Einfachringe),
 
09.CJ.25 Baratovite KCa7(Ti,Zr)2Li3Si12O36F2 C 2/c 2/m
 
09.CJ.25 Katayamalite (K,Na)Ca7Li3Ti2[Si6O18]2(OH,F)2 C1 1
 

Other Baratovite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Baratovite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info
16 - WWW-MINCRYST

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

Baratovite

KCa7(Ti,Zr)2Li3Si12O36F2
Dana No: 61.01.04.01 Strunz No: 09.CJ.25
Locality:

 

Notes: