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Magnetoplumbite Mineral Data
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General Magnetoplumbite Information
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 Chemical Formula: |
Pb(Fe+++,Mn+++)12O19 |
| Composition: |
Molecular Weight = 1,181.26 gm |
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Calcium 0.34 % Ca 0.47 % CaO |
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Titanium 2.43 % Ti 4.06 % TiO2 |
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Manganese 14.88 % Mn 3.60 % MnO / 17.37 % Mn2O3 |
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Aluminum 0.91 % Al 1.73 % Al2O3 |
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Iron 36.40 % Fe 52.05 % Fe2O3 |
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Lead 19.29 % Pb 20.78 % PbO |
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Oxygen 25.73 % O |
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______ ______ |
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100.00 % 100.07 % = TOTAL OXIDE |
| Empirical Formula: |
Pb1.1Fe3+7.7Mn3+2.6Mn2+0.6Ti0.6Al0.4Ca0.1O19 |
| 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  |
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Magnetoplumbite Image |
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Images:
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Magnetoplumbite Crystallography
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| 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 Dipyramidal H-M Symbol (6/m 2/m 2/m) Space Group: P 63/mmc |
| X Ray Diffraction: |
By Intensity(I/Io): 2.63(1), 2.77(1), 1.62(0.7), |
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Physical Properties of Magnetoplumbite
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| 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 |
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Optical Properties of Magnetoplumbite
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| Optical Data: |
Uniaxial (?). |
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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
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| RL Anisotrophism: |
Distinct. |
| RL Color: |
Gray. |
| RL Pleochroism: |
Weak. |
| Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Magnetoplumbite in Air
| λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
| 400 nm |
25.60 |
28.50 |
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| 420 nm |
25.10 |
27.60 |
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| 440 nm |
24.60 |
26.70 |
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| 460 nm |
24.20 |
26.00 |
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| 480 nm |
23.80 |
25.60 |
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| 500 nm |
23.60 |
25.30 |
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| 520 nm |
23.30 |
25.00 |
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| 540 nm |
23.00 |
24.60 |
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| 560 nm |
22.70 |
24.20 |
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| 580 nm |
22.30 |
23.80 |
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| 600 nm |
22.00 |
23.50 |
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| 620 nm |
21.70 |
23.20 |
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| 640 nm |
21.30 |
22.80 |
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| 660 nm |
21.10 |
22.60 |
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| 680 nm |
20.90 |
22.30 |
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| 700 nm |
20.70 |
22.20 |
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Calculated Relative Intensity Colors of Magnetoplumbite in Air
Relative
Intensity |
0% |
50% |
100% |
150% |
200% |
250% |
300% |
350% |
400% |
| R1 |
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| R2 |
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Calculated Properties of Magnetoplumbite
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| Electron Density: |
Bulk Density (Electron Density)=5.25 gm/cc
note: Specific Gravity of Magnetoplumbite =5.71 gm/cc.
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| Fermion Index: |
Fermion Index = 0.05
Boson Index = 0.95 |
| Photoelectric: |
PEMagnetoplumbite = 338.31 barns/electron
U=PEMagnetoplumbite x rElectron Density=1,775.30 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Magnetoplumbite is Not Radioactive |
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Magnetoplumbite Classification
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| Dana Class: |
07.04.02.01 (07)Multiple Oxides |
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(07.04)with O19 groups |
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(07.04.02)(Hexagonal, P63/mmc) Strongly Magnetic |
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07.04.02.01 Magnetoplumbite Pb(Fe,Mn)12O19 P 63/mmc 6/m 2/m 2/m |
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07.04.02.02 Haggertyite! Ba[Fe6Ti5Mg]O19 P 63/mmc 6/m 2/m 2/m |
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07.04.02.03 Nezilovite! PbZn2(Mn,Ti)2Fe8O19 P 63/mmc 6/m 2/m 2/m |
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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 |
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04.C - Metal:Oxygen = 2:3, 3:5, and Similar |
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04.CC -With large and medium-sized cations |
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04.CC.45 Hawthorneite Ba[Ti3Cr4Fe4Mg]O19 P 63/mmc 6/m 2/m 2/m |
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04.CC.45 Diaoyudaoite NaAl11O17 P 63/mmc 6/m 2/m 2/m |
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04.CC.45 Magnetoplumbite Pb(Fe,Mn)12O19 P 63/mmc 6/m 2/m 2/m |
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04.CC.45 Haggertyite! Ba[Fe6Ti5Mg]O19 P 63/mmc 6/m 2/m 2/m |
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04.CC.45 Batiferrite! Ba(Ti2Fe8Fe2)O19 P 63/mmc 6/m 2/m 2/m |
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04.CC.45 Hibonite (Ca,Ce)(Al,Ti,Mg)12O19 P 63/mmc 6/m 2/m 2/m |
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04.CC.45 Nezilovite! PbZn2(Mn,Ti)2Fe8O19 P 63/mmc 6/m 2/m 2/m |
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04.CC.45 Lindqvistite Pb2(Mn,Mg)Fe16027 P 63/mmc 6/m 2/m 2/m |
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04.CC.45 Plumboferrite Pb2Fe(11-x)MnxO19-2x(x=1/3) P 63/mmc 6/m 2/m 2/m |
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04.CC.45 Yimengite K(Cr,Ti,Fe,Mg)12O19 P 63/mmc 6/m 2/m 2/m |
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Other Magnetoplumbite Information
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| 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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Print or Cut-and-Paste your Magnetoplumbite Specimen Label here :
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Magnetoplumbite
Pb(Fe+++,Mn+++)12O19
Dana No: 07.04.02.01 Strunz No: 04.CC.45
Locality:
Notes:
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