Magnetoplumbite Mineral Data

General Magnetoplumbite Information

Chemical Formula:

Pb(Fe+++,Mn+++)12O19

Composition:

Molecular Weight = 1,181.26 gm

Calcium 0.34 % Ca 0.47 % CaO

Titanium 2.43 % Ti 4.06 % TiO₂

Manganese 14.88 % Mn 3.60 % MnO / 17.37 % Mn₂O₃

Aluminum 0.91 % Al 1.73 % Al₂O₃

Iron 36.40 % Fe 52.05 % Fe₂O₃

Lead 19.29 % Pb 20.78 % PbO

Oxygen 25.73 % O

______ ______

100.00 % 100.07 % = TOTAL OXIDE

Empirical Formula:

Pb_1.1Fe³⁺_7.7Mn³⁺_2.6Mn²⁺_0.6Ti_0.6Al_0.4Ca_0.1O₁₉

Environment:

In skarns associated with metamorphosed Fe-Mn orebodies.

IMA Status:

Valid Species (Pre-IMA) 1925

Locality:

Langbanshyttan, Vermland, Sweden. Link to MinDat.org Location Data.

Name Origin:

Named for being a MAGNETic oxide of iron, manganese, and lead, "plumbum."

Name Pronunciation:

Magnetoplumbite + Pronunciation

Magnetoplumbite Image

Images:

Magnetoplumbite

Comments: Black magnetoplumbite masses in calcite.
Location: Langban, Varmland, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Magnetoplumbite Crystallography

Axial Ratios:

a:c = 1:3.91741

Cell Dimensions:

a = 5.873, c = 23.007, Z = 2; V = 687.24 Den(Calc)= 5.71

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): 2.63(1), 2.77(1), 1.62(0.7),

Crystal Structure:

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Help on Above

Moore P B , Sen Gupta P K , Le Page Y , American Mineralogist , 74 (1989) p.1186-1194, Magnetoplumbite, PbFe12O19: Refinement and lone-pair splitting, Note: Symmetry constraints on U(i,j) for Fe5, O4 and O5 were incorrect,, and likely were refined wrong., They have been replaced with their isotropic equivalents.

View Additional jPOWD Structure files for Magnetoplumbite
[1]

Physical Properties of Magnetoplumbite

Cleavage:

{0001} Good

Color:

Grayish black, Black.

Density:

5.517

Diaphaneity:

Opaque

Habit:

Massive - Granular - Common texture observed in granite and other igneous rock.

Hardness:

6 - Orthoclase

Luster:

Metallic

Magnetism:

Strongly magnetic

Streak:

dark brown

Optical Properties of Magnetoplumbite

Optical Data:

Uniaxial (?).

NCalc= 2.55 - from Gladstone-Dale relationship (KC = 0.2715) where Ncalc=Dcalc*KC+1
NCalc= 2.5 - from Gladstone-Dale relationship (KC = 0.2715) where Ncalc=Dmeas*KC+1

RL Anisotrophism:

Distinct.

RL Color:

Gray.

RL Pleochroism:

Weak.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Magnetoplumbite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
400 nm	25.60	28.50
420 nm	25.10	27.60
440 nm	24.60	26.70
460 nm	24.20	26.00
480 nm	23.80	25.60
500 nm	23.60	25.30
520 nm	23.30	25.00
540 nm	23.00	24.60
560 nm	22.70	24.20
580 nm	22.30	23.80
600 nm	22.00	23.50
620 nm	21.70	23.20
640 nm	21.30	22.80
660 nm	21.10	22.60
680 nm	20.90	22.30
700 nm	20.70	22.20

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

Calculated Properties of Magnetoplumbite

Electron Density:

Bulk Density (Electron Density)=5.25 gm/cc
note: Specific Gravity of Magnetoplumbite =5.71 gm/cc.

Fermion Index:

Fermion Index = 0.05
Boson Index = 0.95

Photoelectric:

PE_{Magnetoplumbite}= 338.31 barns/electron
U=PE_{Magnetoplumbite} x rElectron Density=1,775.30 barns/cc.

Radioactivity:

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

Magnetoplumbite Classification

Dana Class:

07.04.02.01 (07)Multiple Oxides

(07.04)with O19 groups

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

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

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

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

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

Strunz Class:

04.CC.45 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate

04.C - Metal:Oxygen = 2:3, 3:5, and Similar

04.CC -With large and medium-sized cations

04.CC.45 Hawthorneite Ba[Ti3Cr4Fe4Mg]O19 P 6₃/mmc 6/m 2/m 2/m

04.CC.45 Diaoyudaoite NaAl11O17 P 6₃/mmc 6/m 2/m 2/m

04.CC.45 Magnetoplumbite Pb(Fe,Mn)12O19 P 6₃/mmc 6/m 2/m 2/m

04.CC.45 Haggertyite! Ba[Fe6Ti5Mg]O19 P 6₃/mmc 6/m 2/m 2/m

04.CC.45 Batiferrite! Ba(Ti2Fe8Fe2)O19 P 6₃/mmc 6/m 2/m 2/m

04.CC.45 Hibonite (Ca,Ce)(Al,Ti,Mg)12O19 P 6₃/mmc 6/m 2/m 2/m

04.CC.45 Nezilovite! PbZn2(Mn,Ti)2Fe8O19 P 6₃/mmc 6/m 2/m 2/m

04.CC.45 Lindqvistite Pb2(Mn,Mg)Fe16027 P 6₃/mmc 6/m 2/m 2/m

04.CC.45 Plumboferrite Pb2Fe(11-x)MnxO19-2x(x=1/3) P 6₃/mmc 6/m 2/m 2/m

04.CC.45 Yimengite K(Cr,Ti,Fe,Mg)12O19 P 6₃/mmc 6/m 2/m 2/m

Other Magnetoplumbite Information

References:

NAME( AntBidBlaNic3) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3)

See Also:

Links to other databases for Magnetoplumbite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - Scandinavian mineral gallery
16 - WWW-MINCRYST

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Ask about Magnetoplumbite here :
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Print or Cut-and-Paste your Magnetoplumbite Specimen Label here :

Magnetoplumbite

Pb(Fe+++,Mn+++)12O19
Dana No: 07.04.02.01 Strunz No: 04.CC.45
Locality:

Notes: