General Plattnerite Information Chemical Formula: |
PbO2 |
Composition: |
Molecular Weight = 239.20 gm |
|
Lead 86.62 % Pb 100.00 % PbO2 |
|
Oxygen 13.38 % O |
|
______ ______ |
|
100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
PbO2 |
Environment: |
In weathered hydrothermal base-maela deposits, oxidized in arid climates. Dimorphous with scrutinyite. |
IMA Status: |
Valid Species (Pre-IMA) 1845 |
Locality: |
Leadhills, Lanark, Scotland. Link to MinDat.org Location Data. |
Name Origin: |
Named after the German metallurgist, K. F. Plattner (1800-1858). |
Name Pronunciation: |
Plattnerite + Pronunciation |
Synonym: |
ICSD 34234 |
|
PDF 41-1492 |
| | Plattnerite Image
Images:
|
|
Plattnerite Crystallography Axial Ratios: |
a:c = 1:0.85892 |
Cell Dimensions: |
a = 3.92, c = 3.367, Z = 1; V = 51.74 Den(Calc)= 7.68 |
Crystal System: |
Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: P 4/mnm |
X Ray Diffraction: |
By Intensity(I/Io): 1.856(1), 2.8(1), 3.5(1), |
Crystal Structure:
|
Mouse
|
| Physical Properties of Plattnerite Cleavage: |
None |
Color: |
Brownish black, Iron black, Black. |
Density: |
8.5 - 9.63, Average = 9.06 |
Diaphaneity: |
Subtranslucent to opaque |
Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
Habit: |
Encrustations - Forms crust-like aggregates on matrix. |
Habit: |
Massive - Uniformly indistinguishable crystals forming large masses. |
Hardness: |
5.5 - Knife Blade |
Luminescence: |
Non-fluorescent. |
Luster: |
Sub Metallic |
Magnetism: |
Nonmagnetic |
Streak: |
chestnut brown |
| Optical Properties of Plattnerite Gladstone-Dale: |
CI meas= -0.366 (Poor) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.612 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1693,KPDmeas= 0.1434,KC= 0.105 Ncalc = 1.81 - 2.01 Optical Data: |
Uniaxial (-), e=2.25, w=2.35, bire=0.1000. |
RL Anisotrophism: |
Noticeable, midnight blue. |
RL Color: |
Gray-white, with red-brown internal reflections. |
RL Pleochroism: |
Distinct. |
Reflectivity |
|
| Calculated Properties of Plattnerite Electron Density: |
Bulk Density (Electron Density)=7.43 gm/cc |
note: Specific Gravity of Plattnerite =9.07 gm/cc. Fermion Index: |
Fermion Index = 0.19 |
Boson Index = 0.81 Photoelectric: |
PEPlattnerite =1,622.85 barns/electron |
U=PEPlattnerite x rElectron Density=12054.30 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Plattnerite is Not Radioactive | Plattnerite Classification Dana Class: |
04.04.01.06 (04)Simple Oxides |
|
(04.04)with a cation charge of 4+ (A++++ O2) |
|
(04.04.01)Rutile group (Tetragonal: P4/mnm) |
|
|
|
|
|
|
|
|
|
Strunz Class: |
04.DB.05 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
|
04.D - Metal:Oxygen = 1:2 and similar |
|
04.DB -With medium-sized cations; chains of edge-sharing octahedra |
|
|
|
|
|
|
|
|
|
| Other Plattnerite Information References: |
NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic3) |
See Also: |
Links to other databases for Plattnerite : |
1 - Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 - Athena 4 - EUROmin Project 5 - Ecole des Mines de Paris 6 - GeoScienceWorld 7 - Google Images 8 - Google Scholar 9 - Handbook of Mineralogy (MinSocAm) 10 - Handbook of Mineralogy (UofA) 11 - HyperPhysics 12 - MinDAT 13 - Mineralienatlas (Deutsch) 14 - Online Mineral Museum 15 - QUT Mineral Atlas 16 - Ruff.Info 17 - WWW-MINCRYST Search for Plattnerite using: Visit our Advertisers for Plattnerite : A Bijoux Google Search for PlattneriteAdam's Minerals Google Search for Plattnerite Cape Minerals Google Search for Plattnerite Dakota Matrix Minerals Google Search for Plattnerite Excalibur Mineral Corp. Google Search for Plattnerite Exceptional Minerals Google Search for Plattnerite John Betts Fine Minerals Search for Plattnerite McDougall Minerals Google Search for Plattnerite Mineral News Website Link Rock and Mineral Shows Google Search for Plattnerite Weinrich Minerals, Inc. Google Search for Plattnerite Ask about Plattnerite here : Print or Cut-and-Paste your Plattnerite Specimen Label here :
| |
|
| |