Baratovite Mineral Data (original) (raw)

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

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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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Ask about Baratovite here :
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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: