Seeligerite
A valid IMA mineral species
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About Seeligerite
Prof. Dr. Erich Seeliger at the Johannesschacht Mine, in 1967.
Johannesschacht Mine, Wölsendorf, Schwarzach bei Nabburg, Schwandorf District, Upper Palatinate, Bavaria, Germany
Johannesschacht Mine, Wölsendorf, Schwarzach bei Nabburg, Schwandorf District, Upper Palatinate, Bavaria, Germany
Formula:
Pb3(IO3)OCl3
Colour:
Bright yellow
Lustre:
Vitreous, Waxy
Crystal System:
Orthorhombic
Name:
Named after Erich Seeliger, Professor of Mineralogy, Technical University, Berlin, Germany.
This page provides mineralogical data about Seeligerite.
Unique Identifiers
Mindat ID:
3603
Long-form identifier:
mindat:1:1:3603:6
IMA Classification of Seeligerite
Approved
IMA Formula:
Pb2+3(I5+O4)Cl3
Approval year:
1970
First published:
1971
Classification of Seeligerite
4.KB.15
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
K : Iodates: Trigonal [IO3] pyramids (mostly).
B : Iodates with additional anions, without H2O
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
K : Iodates: Trigonal [IO3] pyramids (mostly).
B : Iodates with additional anions, without H2O
Dana 7th ed.:
22.1.2.1
22.1.2.1
22 : IODATES CONTAINING HYDROXYL OR HALOGEN
1 : Miscellaneous
22 : IODATES CONTAINING HYDROXYL OR HALOGEN
1 : Miscellaneous
29.6
29 : Iodates
29 : Iodates
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Sli | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Seeligerite
Vitreous, Waxy
Colour:
Bright yellow
Cleavage:
Perfect
{001} perfect, {110} good, {100} and {010} rare
{001} perfect, {110} good, {100} and {010} rare
Optical Data of Seeligerite
Type:
Biaxial (-)
RI values:
nα = 2.12 nβ = 2.32 nγ = 2.32
2V:
Measured: 4°
Max. Birefringence:
δ = 0.200
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars.
Surface Relief:
Moderate
Dispersion:
r < v
Chemistry of Seeligerite
Mindat Formula:
Pb3(IO3)OCl3
Element Weights:
Elements listed:
Crystallography of Seeligerite
Crystal System:
Orthorhombic
Class (H-M):
mm2 - Pyramidal
Space Group:
Cmm2
Cell Parameters:
a = 7.971(2) Å, b = 7.976(2) Å, c = 27.341(5) Å
Ratio:
a:b:c = 0.999 : 1 : 3.428
Unit Cell V:
1738.3 ų
Z:
8
Morphology:
Thin plates
Comment:
The TEM investigation has revealed additional superlattice reflections.
Crystal Structure
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0014582 | Seeligerite | Bindi L, Welch M D, Bonazzi P, Pratesi G, Menchetti S (2008) The crystal structure of seeligerite, Pb3IO4Cl3, a rare Pb-I-oxychloride from the San Rafael mine, Sierra Gorda, Chile Mineralogical Magazine 71 771-783 | 2008 | San Rafael mine, Sierra Gorda, Chile | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.649 Å | (90) |
| 3.219 Å | (100) |
| 2.816 Å | (70) |
| 2.785 Å | (80) |
| 2.172 Å | (60) |
| 1.991 Å | (80) |
| 1.748 Å | (70) |
| 1.693 Å | (80) |
| 1.619 Å | (80) |
| 1.408 Å | (60) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47g : [Halogen-bearing surface weathering minerals] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Seeligerite
General Appearance of Type Material:
Thin plates
Associated Minerals at Type Locality:
Synonyms of Seeligerite
Other Language Names for Seeligerite
Common Associates
Associations Based on Photo Data:
| 18 photos of Seeligerite associated with Schwartzembergite | Pb5H2(IO2)O4Cl3 |
| 15 photos of Seeligerite associated with Wulfenite | Pb(MoO4) |
| 14 photos of Seeligerite associated with Phoenicochroite | Pb2(CrO4)O |
| 7 photos of Seeligerite associated with Boleite | KPb26Ag9Cu24(OH)48Cl62 |
| 3 photos of Seeligerite associated with Diaboleite | Pb2CuCl2(OH)4 |
| 3 photos of Seeligerite associated with Pseudoboleite | Pb31Cu24Cl62(OH)48 |
| 2 photos of Seeligerite associated with Quartz | SiO2 |
| 2 photos of Seeligerite associated with 'Percylite' | |
| 2 photos of Seeligerite associated with Gypsum | CaSO4 · 2H2O |
| 1 photo of Seeligerite associated with Iranite | Pb10Cu(CrO4)6(SiO4)2(OH)2 |
Related Minerals - Strunz-mindat Grouping
| 4.KB. | Pohlite | Pb7(IO3)(OH)4Cl9 |
| 4.KB. | Bluebellite | Cu6[(I5+O3)(OH)3](OH)7Cl |
| 4.KB.05 | Salesite | Cu(IO3)(OH) |
| 4.KB.10 | Schwartzembergite | Pb5H2(IO2)O4Cl3 |
Other Information
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Seeligerite
mindat.org URL:
https://www.mindat.org/min-3603.html
Please feel free to link to this page.
Please feel free to link to this page.
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References for Seeligerite
Reference List:
Localities for Seeligerite
Showing 14 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Chile | |
| Lukas Kruszewski collection |
| Arfè et al. (2016) | |
| Samples analysed by Dr. Jochen Schlüter (Hamburg University) |
| "Yacimientos Metalíferos de Chile" +1 other reference | |
| Brugger et al. (2012) |
| Martins da Pedra collection | |
| V. Sapienza collection | |
| Mr. Terry Szenics +1 other reference | |
| M. Dini specimens | |
| Mücke (1971) |
| Thorne (n.d.) |
| Demetrius Pohl identified AMNH 1985 +2 other references | |
| Raman spectroscopy by Joy Desor |
| maurizio dini collection - analysed ... |
Quick NavTopAbout SeeligeriteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
San Francisco Mine, Caracoles, Caracoles mining district, Sierra Gorda, Antofagasta Province, Antofagasta, Chile