Zoltaiite Mineral Data

General Zoltaiite Information

Chemical Formula:

BaV++++2V+++12Si2O27

Composition:

Molecular Weight = 1,340.36 gm

Barium 10.76 % Ba 12.01 % BaO

Titanium 4.68 % Ti 7.81 % TiO₂

Vanadium 44.66 % V 61.84 % V₂O₃ / 4.27 % VO₂

Chromium 1.32 % Cr 1.93 % Cr₂O₃

Iron 2.04 % Fe 2.92 % Fe₂O₃

Silicon 4.32 % Si 9.23 % SiO₂

Oxygen 32.23 % O

______ ______

100.00 % 100.01 % = TOTAL OXIDE

Empirical Formula:

Ba_1.05Ti_1.31V⁴⁺_0.69V³⁺_11.06Fe³⁺_0.49Cr_0.34Si_2.06O₂₇

Environment:

Zoltaiite formed with quartz, celsian, apatite, sphalerite, pyrrhotite, and galena under greenschist-facies metamorphism

IMA Status:

Approved IMA 2003 (Dana # Added)

Locality:

Wigwam deposit, Akolkolex River area, southeast of Revelstoke, British Columbia, Canada Link to MinDat.org Location Data.

Name Origin:

Named after Tibor Zoltai (1925-2003) in recognition of his contributions to mineralogy both as a researcher and as an educator.

Synonym:

IMA2003-006

Zoltaiite Image

Images:

Zoltaiite

Comments: B&W reflected-light photomicrograph showing zoltaiite grains (Z) in the type sample. AmMin v90, p1656.
Location: Eastern edge of the Shuswap metamorphic complex of British Columbia, Canada. Scale: See Image.
© American Mineralogist

Zoltaiite Crystallography

Axial Ratios:

a:c = 1:1.21286

Cell Dimensions:

a = 7.6014, c = 9.2195, Z = 1; V = 461.34 Den(Calc)= 4.82

Crystal System:

Trigonal - Rhombohedral H-M Symbol ( 3) Space Group: P 3

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

By Intensity(I/I_o): 2.19(1), 2.934(0.89), 3.103(0.78),2.785(0.67), 1.438(0.63), 1.934(0.53), 2.403(0.5), 2.679(0.48), 1.693(0.45),

Physical Properties of Zoltaiite

Cleavage:

None

Color:

Steel gray, Black.

Diaphaneity:

Opaque

Fracture:

Irregular - Flat surfaces (not cleavage) fractured in an irregular pattern.

Habit:

Disseminated - Occurs in small, distinct particles dispersed in matrix.

Hardness:

6-7 - Orthoclase-Quartz

Luster:

Sub Metallic

Optical Properties of Zoltaiite

Optical Data:

NCalc= 2.3 - from Gladstone-Dale relationship (KC = 0.2694) where Ncalc=Dcalc*KC+1

RL Bireflectance:

Weak.

RL Color:

Gray with a weak brownish tint.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Zoltaiite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	16.00	16.43
420 nm	15.82	16.38
440 nm	15.79	16.53
460 nm	15.83	16.70
470 nm	15.87	16.83
480 nm	15.92	16.96
500 nm	15.98	17.13
520 nm	16.00	17.26
540 nm	16.00	17.33
546 nm	15.99	17.33
560 nm	15.96	17.31
580 nm	15.94	17.37
589 nm	15.93	17.41
600 nm	15.93	17.45
620 nm	15.95	17.56
640 nm	16.03	17.69
650 nm	16.08	17.75
660 nm	16.14	17.81
680 nm	16.26	17.91
700 nm	16.40	18.03

**Standardized Intensity (100%) Reflection Spectra of Zoltaiite in Oil**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	4.43	4.91
420 nm	4.40	4.94
440 nm	4.43	5.07
460 nm	4.49	5.21
470 nm	4.53	5.29
480 nm	4.57	5.38
500 nm	4.62	5.50
520 nm	4.64	5.56
540 nm	4.64	5.58
546 nm	4.64	5.58
560 nm	4.63	5.59
580 nm	4.62	5.62
589 nm	4.62	5.59
600 nm	4.62	5.57
620 nm	4.65	5.73
640 nm	4.69	5.81
650 nm	4.72	5.85
660 nm	4.76	5.90
680 nm	4.85	5.97
700 nm	4.92	6.02

**Calculated Relative Intensity Colors of Zoltaiite in Air**
Relative Intensity	0%	60%	100%	120%	180%	240%	300%	360%	420%	480%	540%	560%
R₁
R₂

**Calculated Relative Intensity Colors of Zoltaiite in Oil**
Relative Intensity	0%	100%	200%	300%	400%	500%	600%	700%	800%	900%	1000%
R₁
R₂

Calculated Properties of Zoltaiite

Electron Density:

Bulk Density (Electron Density)=4.49 gm/cc
note: Specific Gravity of Zoltaiite =4.82 gm/cc.

Fermion Index:

Fermion Index = 0.03
Boson Index = 0.97

Photoelectric:

PE_Zoltaiite= 57.02 barns/electron
U=PE_Zoltaiite x rElectron Density= 255.72 barns/cc.

Radioactivity:

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

Zoltaiite Classification

Dana Class:

47.02.06.01 (47)Vanadium Oxysalts

(47.02)(VmOn)

(47.02.06)Dana Group

47.02.06.01 Zoltaiite! BaV2V12Si2O27 P 3 3

Strunz Class:

09.AG.85 09 - SILICATES (Germanates)

09.A - Nesosilicates

09.AG -Nesosilicates with additional anions; cations in > [6] � [6] coordination

09.AG.85 Zoltaiite! BaV2V12Si2O27 P 3 3

Other Zoltaiite Information

References:

NAME( AmMin, v 90, p1655) PHYS. PROP.(AmMin, v 90, p1655) OPTIC PROP.(AmMin, v 90, p1655)

See Also:

Links to other databases for Zoltaiite :
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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Zoltaiite

BaV++++2V+++12Si2O27
Dana No: 47.02.06.01 Strunz No: 09.AG.85
Locality:

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