Batiferrite Mineral Data

Batiferrite Mineral Data

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General Batiferrite Information

Chemical Formula:

Ba(Ti2Fe+++8Fe++2)O19

Composition:

Molecular Weight = 1,071.04 gm

Potassium 0.18 % K 0.22 % K₂O

Barium 10.90 % Ba 12.17 % BaO

Sodium 0.11 % Na 0.14 % Na₂O

Strontium 0.41 % Sr 0.48 % SrO

Magnesium 0.91 % Mg 1.51 % MgO

Titanium 8.05 % Ti 13.42 % TiO₂

Manganese 2.05 % Mn 2.65 % MnO

Iron 49.01 % Fe 6.04 % FeO / 63.37 % Fe₂O₃

Oxygen 28.38 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Ba_0.85Na_0.05K_0.05Sr_0.05Fe³⁺_8.5Fe²⁺_0.9Mg_0.4Mn²⁺_0.4Ti_1.8O₁₉

Environment:

In cavities within Quaternary melilite- and leucite-nephelinite basalts.

IMA Status:

Approved IMA 1997 (Dana # Added)

Locality:

Udersdorf, Graulai, and Altburg, western Eifel area, Germany. Link to MinDat.org Location Data.

Name Origin:

Named for the chemical composition (Ba,Ti,Fe) and the structural relationships to hexaferrite-type compounds.

Synonym:

IMA1997-038

Batiferrite Image

Images:

Batiferrite

Comments: Gray hexagonal crystal of batiferrite on matrix.
Location: Graulai (Grauley), near Hillesheim, Eifel Mts, Rhineland-Palatinate, Germany. Scale: Picture size 1.2 mm.
© Thomas Witzke / Abraxas-Verlag

Batiferrite Crystallography

Axial Ratios:

a:c = 1:3.95903

Cell Dimensions:

a = 5.908, c = 23.39, Z = 2; V = 707.04 Den(Calc)= 5.03

Crystal System:

Hexagonal - Dihexagonal DipyramidalH-M Symbol (6/m 2/m 2/m) Space Group: P 6₃/mmc

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

By Intensity(I/I_o): 2.631(1)(114), 2.799(0.8)(107), 1.478(0.7)(220),2.429(0.6)(203), 1.672(0.5)(217), 1.638(0.4)(2.0.11), 1.397(0.4)(2.1.14), 1.49(0.4)(2.1.10),

Forms:

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Forms: [ 1 0 3] [ 0 0 1]

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Crystal Structure:

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Lengauer C L , Tillmanns E , Hentschel G , Mineralogy and Petrology , 71 (2001) p.1-19, Batiferrite, Ba[Ti2Fe10]O19, a new ferrimagnetic magnetoplumbite-type mineral, from the Quaternary volcanic rocks of the western Eifel area, Germany, Note: z-coordinate of A-site altered because it was obviously a typo, Locality: Quaternary volcanic rocks of the western Eifel area, Germany

Physical Properties of Batiferrite

Cleavage:

[0001] Good

Color:

Black.

Diaphaniety:

Opaque

Fracture:

Brittle - Generally displayed by glasses and most non-metallic minerals.

Habit:

Euhedral Crystals - Occurs as well-formed crystals showing good external form.

Habit:

Hexagonal - Six-sided crystal shape in cross-section or habit.

Habit:

Platy - Sheet forms (e.g. micas).

Hardness:

6 - Orthoclase

Luster:

Sub Metallic

Magnetism:

Ferromagnetic

Streak:

dark brown

Optical Properties of Batiferrite

RL Anisotrophism:

Moderate.

RL Bireflectance:

Distinct in air, weak in oil.

RL Color:

Pale gray.

RL Pleochroism:

None.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Batiferrite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
470 nm	22.10	20.10
546 nm	21.00	19.40
589 nm	20.20	18.80
650 nm	19.30	18.30

**Standardized Intensity (100%) Reflection Spectra of Batiferrite in Oil**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
470 nm	8.40	7.10
546 nm	7.80	6.60
589 nm	7.40	6.30
650 nm	6.80	5.90

**Calculated Relative Intensity Colors of Batiferrite in Air**
Relative Intensity	0%	50%	100%	150%	200%	250%	300%	350%	400%	450%	470%
R₁
R₂

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

Calculated Properties of Batiferrite

Electron Density:

r_electron=4.71 gm/cc
note: r_Batiferrite=5.03 gm/cc.

Fermion Index

Fermion Index = 0.04154
Boson Index = 0.95846

Photoelectric:

PE_Batiferrite= 64.24 barns/electron
U=PE_Batiferrite x r_electron= 302.78 barns/cc.

Radioactivity:

GRapi = 2.45 (Gamma Ray American Petroleum Institute Units)

Estimated Radioactivity from Batiferrite - barely detectable

Batiferrite Classification

Dana Class:

7.4.2.4 (7)Multiple Oxides

(7.4)with O19 groups

(7.4.2)(Hexagonal, P63/mmc) Strongly Magnetic

7.4.2.1 Magnetoplumbite Pb(Fe,Mn)12O19 P 6₃/mmc 6/m 2/m 2/m

7.4.2.2 Haggertyite! Ba[Fe6Ti5Mg]O19 P 6₃/mmc 6/m 2/m 2/m

7.4.2.3 Nezilovite! PbZn2(Mn,Ti)2Fe8O19 P 6₃/mmc 6/m 2/m 2/m

7.4.2.4 Batiferrite ! Ba(Ti2Fe8Fe2)O19 P 6₃/mmc 6/m 2/m 2/m

Strunz Class:

IV/C.08-25 IV - Oxides

IV/C - Oxides with metal : oxygen = 2:3 (M2O3 and related compounds)

IV/C.08 - Yimngite - Otjisumeite series

IV/C.08-10 Yimengite K(Cr,Ti,Fe,Mg)12O19 P 6₃/mmc 6/m 2/m 2/m

IV/C.08-20 Hawthorneite Ba[Ti3Cr4Fe4Mg]O19 P 6₃/mmc 6/m 2/m 2/m

IV/C.08-22 Haggertyite! Ba[Fe6Ti5Mg]O19 P 6₃/mmc 6/m 2/m 2/m

IV/C.08-25 Batiferrite Ba(Ti2Fe8Fe2)O19 P 6₃/mmc 6/m 2/m 2/m

IV/C.08-30 Hibonite (Ca,Ce)(Al,Ti,Mg)12O19 P 6₃/mmc 6/m 2/m 2/m

IV/C.08-35 Nezilovite! PbZn2(Mn,Ti)2Fe8O19 P 6₃/mmc 6/m 2/m 2/m

IV/C.08-40 Magnetoplumbite Pb(Fe,Mn)12O19 P 6₃/mmc 6/m 2/m 2/m

IV/C.08-45 Zenzenite Pb3(Fe,Mn)4Mn3O15 P 6₃/mcm 6/m 2/m 2/m

IV/C.08-47 Lindqvistite Pb2(Mn,Mg)Fe16027 P 6₃/mmc 6/m 2/m 2/m

IV/C.08-50 Plumboferrite Pb2Fe(11-x)MnxO19-2x(x=1/3) P 6₃/mmc 6/m 2/m 2/m

IV/C.08-60 Bartelkeite PbFeGe3O8 P 2₁,P 2₁/m Mono

IV/C.08-70 Otjisumeite PbGe4O9 P1,P 1 Tri

Other Batiferrite Information

References:

NAME( AmMin, Vol 86, p 1112) PHYS. PROP.(AmMin, Vol 86, p 1112) OPTIC PROP.(AmMin, Vol 86, p 1112)

See Also:

Links to other databases for Batiferrite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas

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

Batiferrite

Ba(Ti2Fe+++8Fe++2)O19
Dana No: 7.4.2.4 Strunz No: IV/C.08-25
Locality:

Notes: