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Lithiophorite Mineral Data
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General Lithiophorite Information
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Chemical Formula: |
(Al,Li)Mn++++O2(OH)2 |
Composition: |
Molecular Weight = 141.92 gm |
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Lithium 1.47 % Li 3.16 % Li2O |
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Manganese 38.71 % Mn 16.69 % Mn2O3 / 42.88 % MnO2 |
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Aluminum 13.31 % Al 25.15 % Al2O3 |
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Hydrogen 1.42 % H 12.69 % H2O |
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Oxygen 45.09 % O |
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______ ______ |
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100.00 % 100.56 % = TOTAL OXIDE |
Empirical Formula: |
Al0.7Li0.3Mn4+0.7Mn3+0.3O2(OH)2 |
Environment: |
Common constituent of "Wad" in the oxidized zones of hydrothermal ore deposits and sedimentary manganese deposits. |
IMA Status: |
Valid Species (Pre-IMA) 1870 |
Locality: |
White Oak mountain, Bradley County, Tennessee, USA. Link to MinDat.org Location Data. |
Name Origin: |
Named for the content of LITHIum and the Greek for "to bear". |
Name Pronunciation: |
Lithiophorite + Pronunciation |
Synonym: |
ICSD 75283 |
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PDF 41-1378 |
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Wad |
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Lithiophorite Image |
Images:
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Lithiophorite Crystallography
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Axial Ratios: |
a:c = 1:9.63141 |
Cell Dimensions: |
a = 2.9247, c = 28.169, Z = 3; V = 208.67 Den(Calc)= 3.39 |
Crystal System: |
Trigonal - Hexagonal Scalenohedral H-M Symbol (3 2/m) Space Group: R 3m |
X Ray Diffraction: |
By Intensity(I/Io): 4.714(1), 3.143(0.7), 9.428(0.68),1.453(0.4), 2.371(0.24), 1.88(0.14), |
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Physical Properties of Lithiophorite
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Cleavage: |
{0001} Perfect |
Color: |
Bluish black, Black. |
Density: |
3.14 - 3.37, Average = 3.25 |
Diaphaneity: |
Opaque |
Fracture: |
Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite). |
Habit: |
Botryoidal - "Grape-like" rounded forms (e.g.. malachite). |
Hardness: |
2.5-3 - Finger Nail-Calcite |
Luster: |
Metallic - Dull |
Streak: |
blackish gray |
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Optical Properties of Lithiophorite
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Optical Data: |
Uniaxial (?). |
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NCalc= 2.1 - from Gladstone-Dale relationship (KC = 0.3241) where Ncalc=Dcalc*KC+1 NCalc= 2.05 - from Gladstone-Dale relationship (KC = 0.3241) where Ncalc=Dmeas*KC+1
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RL Anisotrophism: |
Extreme, ligh gray to dark brown to bluish gray. |
RL Color: |
Light gray to dark brownish gray. |
RL Pleochroism: |
Very strong. |
Reflectivity |
Standardized Intensity (100%) Reflection Spectra of Lithiophorite in Air
λ |
R1 |
R2 |
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∑ R1(λ) |
∑ R2(λ) |
400 nm |
15.70 |
34.90 |
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420 nm |
14.00 |
31.30 |
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440 nm |
12.30 |
27.70 |
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460 nm |
11.20 |
24.90 |
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480 nm |
10.60 |
23.00 |
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500 nm |
10.20 |
21.90 |
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520 nm |
10.00 |
21.00 |
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540 nm |
9.80 |
20.40 |
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560 nm |
9.60 |
19.70 |
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580 nm |
9.50 |
19.20 |
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600 nm |
9.40 |
18.90 |
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620 nm |
9.30 |
18.60 |
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640 nm |
9.30 |
18.40 |
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660 nm |
9.30 |
18.40 |
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680 nm |
9.30 |
18.30 |
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700 nm |
9.30 |
18.20 |
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Calculated Relative Intensity Colors of Lithiophorite in Air
Relative Intensity |
0% |
90% |
100% |
180% |
270% |
360% |
450% |
540% |
630% |
720% |
810% |
890% |
R1 |
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R2 |
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Calculated Properties of Lithiophorite
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Electron Density: |
Bulk Density (Electron Density)=3.30 gm/cc note: Specific Gravity of Lithiophorite =3.39 gm/cc. |
Fermion Index: |
Fermion Index = 0.0013190004 Boson Index = 0.9986809996 |
Photoelectric: |
PELithiophorite = 10.31 barns/electron U=PELithiophorite x rElectron Density= 33.98 barns/cc. |
Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Lithiophorite is Not Radioactive |
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Lithiophorite Classification
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Dana Class: |
06.04.01.01 (06)Hydroxides and Oxides Containing Hydroxyl |
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(06.04)containing multiple cations |
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(06.04.01)Dana Group |
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06.04.01.01 Lithiophorite (Al,Li)MnO2(OH)2 R 3m 3 2/m |
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06.04.01.02 Quenselite PbMnO2(OH) P 2 2 |
Strunz Class: |
04.FE.25 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.F - Hydroxides (without V or U) |
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04.FE -Hydroxides with OH, without H2O; sheets of edge-sharing octahedra |
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04.FE.25 Feitknechtite beta-MnO(OH) Unk Hex |
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04.FE.25 Lithiophorite (Al,Li)MnO2(OH)2 R 3m 3 2/m |
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Other Lithiophorite Information
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References: |
NAME( AntBidBlaNic3) PHYS. PROP.(AntBidBlaNic3) OPTIC PROP.(AntBidBlaNic3) |
See Also: |
Links to other databases for Lithiophorite :
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 - WWW-MINCRYST
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Print or Cut-and-Paste your Lithiophorite Specimen Label here :
Lithiophorite
(Al,Li)Mn++++O2(OH)2
Dana No: 06.04.01.01 Strunz No: 04.FE.25
Locality:
Notes:
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