Baratovite Mineral Data + 
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- 61.1.4.1 Baratovite KCa7(Ti,Zr)2Li3Si12O36F2 C 2/c 2/m
- 61.1.4.2 Katayamalite (K,Na)Ca7Li3Ti2[Si6O18]2(OH,F)2 C1 1
- VIII/E.14-10 Baratovite KCa7(Ti,Zr)2Li3Si12O36F2 C 2/c 2/m
General Baratovite Information |
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 Chemical Formula: |
KCa7(Ti,Zr)2Li3Si12O36F2 | ||
| 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 | |||
| Empirical Formula: |
KCa7Ti1.5Zr0.5Li3Si12O36F2 | ||
| 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. | ||
| IMA Status: |
Approved IMA 1975 | ||
| Locality: |
From the Dara-I-Pioz massif, Alai Range, Tien Shan, Tadzhikistan. Link to MinDat.org Location Data. | ||
| Name Origin: |
For Rauf Baratovich Baratov, Soviet petrographer, of Tadzhikistan. | ||
| Synonym: |
ICSD 100493 | ||
| PDF 33-811 | |||
Baratovite Image | |||
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Images:
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Baratovite Crystallography |
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| Axial Ratios: |
a:b:c =1.7381:1:2.1451 | ||
| Cell Dimensions: |
a = 16.94, b = 9.746, c = 20.907, Z = 4; beta = 112.5° V = 3,188.94 Den(Calc)= 2.93 | ||
| Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c | ||
| 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), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Baratovite |
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| Cleavage: |
[001] Perfect | ||
| Color: |
Pearl white. | ||
| Density: |
2.92 | ||
| Diaphaniety: |
Transparent to Translucent | ||
| Habit: |
Aggregates - Made of numerous individual crystals or clusters. | ||
| Habit: |
Platy - Sheet forms (e.g. micas). | ||
| Hardness: |
3.5 - Copper Penny | ||
| Luster: |
Vitreous - Pearly | ||
| Streak: |
white | ||
Optical Properties of Baratovite |
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| 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 |
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| 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 |
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| Electron Density: |
relectron=2.89 gm/cc |
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| Fermion Index |
Fermion Index = 0.02297 Boson Index = 0.97703 |
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| Photoelectric: |
PEBaratovite = 8.73 barns/electron |
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| Radioactivity: |
GRapi = 39.51 (Gamma Ray American Petroleum Institute Units) Estimated Radioactivity from Baratovite |
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Baratovite Classification |
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| Dana Class: |
61.1.4.1 (61)Cyclosilicate Six-Membered Rings | ||
| (61.1)with [Si6O18] rings; possible (OH) and Al substitution | |||
| (61.1.4)Baratovite group | |||
| Strunz Class: |
VIII/E.14-10 VIII - Silicates | ||
| VIII/E - Cyklosilicates, six rings [Si6O18]12- | |||
| VIII/E.14 - Baratovite series | |||
Other Baratovite Information |
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| References: |
NAME( AntBidBlaNic2) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) | ||
| 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 -Google Images 6 -Google Scholar 7 -Handbook of Mineralogy (MinSocAm) 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 -QUT Mineral Atlas 14 - WWW-MINCRYST 15 -École des Mines de Paris Search for Baratovite using: Visit our Advertisers for Baratovite : Translate Baratovite Mineral Data : Ask about Baratovite here : Print or Cut-and-Paste your Baratovite Specimen Label here :
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- barely detectable 
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