Panichiite
A valid IMA mineral species
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About Panichiite
Formula:
(NH4)2SnCl6
Colour:
Colorless
Lustre:
Vitreous, Sub-Vitreous
Specific Gravity:
2.43
Crystal System:
Isometric
Name:
Named by Francesco DeMartin, Italo Campostrini, and Carlo Maria Gramaccioli in 2009 in honor of Ugo Panichi [August 22, 1872 Firenze, Italy - March 11, 1966 Pavia, Italy], professor of mineralogy at Pavia University and professor of experimental physics at the University of Siena.
This page provides mineralogical data about Panichiite.
Unique Identifiers
Mindat ID:
35969
Long-form identifier:
mindat:1:1:35969:2
GUID
(UUID V4):
(UUID V4):
2d90104d-2ff3-4a4d-bf52-74c3572d5341
IMA Classification of Panichiite
Classification of Panichiite
3.00.
3 : HALIDES
0 :
0 :
3 : HALIDES
0 :
0 :
11.5.1.3
11 : HALIDE COMPLEXES
5 : AmBX6
11 : HALIDE COMPLEXES
5 : AmBX6
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 |
---|---|---|
Pnc | 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 Panichiite
Vitreous, Sub-Vitreous
Transparency:
Transparent
Colour:
Colorless
Streak:
White
Tenacity:
Brittle
Cleavage:
None Observed
Density:
2.43 g/cm3 (Measured) 2.423 g/cm3 (Calculated)
Optical Data of Panichiite
Type:
Isotropic
RI values:
n = 1.68
Birefringence:
0.0
Surface Relief:
High
Pleochroism:
Non-pleochroic
Chemistry of Panichiite
Mindat Formula:
(NH4)2SnCl6
Elements listed:
Crystallography of Panichiite
Crystal System:
Isometric
Class (H-M):
m3m (4/m 3 2/m) - Hexoctahedral
Space Group:
Fm3m
Setting:
Fm3m
Cell Parameters:
a = 10.0641 Å
Unit Cell V:
1019.31 ų
Z:
4
Morphology:
Octahedral {111} with rare small cube faces {001}
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) |
---|---|---|---|---|---|---|---|
0006286 | Panichiite | Demartin F, Campostrini I, Gramaccioli C M (2009) Panichiite, natural ammonium hexachlorostannate(IV), (NH4)2SnCl6, from La Fossa crater, Vulcano, Aeolian Islands, Italy The Canadian Mineralogist 47 367-372 | 2009 | La Fossa crater, Vulcano, Aeolian Islands, Italy | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
d-spacing | Intensity |
---|---|
5.81 Å | (100) |
5.03 Å | (73) |
3.035 Å | (48) |
2.516 Å | (69) |
2.250 Å | (39) |
1.937 Å | (23) |
1.779 Å | (42) |
1.701 Å | (22) |
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
Stage 7: Great Oxidation Event | <2.4 |
45b : [Other oxidized fumarolic minerals] | |
Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
50 : Coal and/or oil shale minerals | <0.36 |
Stage 10b: Anthropogenic minerals | <10 Ka |
54 : Coal and other mine fire minerals (see also #51 and #56) |
Type Occurrence of Panichiite
General Appearance of Type Material:
Colorless octahedral crystals (sometimes with minor cube faces) and up to 0.2 mm, usually in aggregates.
Place of Conservation of Type Material:
Dipartimento di Chimica Strutturale e Stereochimica Inorganica, University of Milan, Italy (2008-01).
Geological Setting of Type Material:
From a medium-temperature fumarole [250 C] on the edge of a volcanic crater.
Associated Minerals at Type Locality:
Synonyms of Panichiite
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
3.00. | Fluornatrocoulsellite | CaNa3AlMg3F14 |
3.00. | Paratacamite-(Mg) | Cu3(Mg,Cu)(OH)6Cl2 |
Fluorescence of Panichiite
Not fluorescent in UV
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 Panichiite
mindat.org URL:
https://www.mindat.org/min-35969.html
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References for Panichiite
Localities for Panichiite
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).
Struck out - Mineral was erroneously reported from this locality.
Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.
All localities listed without proper references should be considered as questionable.
Italy (TL) | |
| Demartin et al. (2009) |
Poland | |
| Łukasz Kruszewski (2012) |
Quick NavTopAbout PanichiiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography Crystal StructureX-Ray Powder DiffractionGeological EnvironmentType Occurrence SynonymsCommon AssociatesStrunz-MindatFluorescence Other InformationInternet Links References Localities Locality List
La Fossa crater, Vulcano Island, Lipari, Eolie Islands, Metropolitan City of Messina, Sicily, Italy