Coccinite
A valid IMA mineral species - grandfathered
This page is currently not sponsored. Click here to sponsor this page.
About Coccinite
Formula:
HgI2
Colour:
Orange-red, deep red
Hardness:
2
Crystal System:
Tetragonal
Type Locality:
Unique Identifiers
Mindat ID:
1100
Long-form identifier:
mindat:1:1:1100:2
GUID
(UUID V4):
(UUID V4):
d932cb93-a75f-4405-b959-9157e1ccd64c
IMA Classification of Coccinite
Approved, 'Grandfathered' (first described prior to 1959)
Classification of Coccinite
3.AB.10
3 : HALIDES
A : Simple halides, without H2O
B : M:X = 1:2
3 : HALIDES
A : Simple halides, without H2O
B : M:X = 1:2
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 |
---|---|---|
Cci | 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 Coccinite
Transparency:
Translucent
Colour:
Orange-red, deep red
Streak:
Red
Hardness:
2 on Mohs scale
Cleavage:
Distinct/Good
On {001}.
On {001}.
Chemistry of Coccinite
Mindat Formula:
HgI2
Elements listed:
CAS Registry number:
Crystallography of Coccinite
Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
P42/nmc
Setting:
P42/nmc
Cell Parameters:
a = 4.376(4) Å, c = 12.41(1) Å
Ratio:
a:c = 1 : 2.836
Unit Cell V:
237.64 ų (Calculated from Unit Cell)
Morphology:
Forms include {100} and {102}.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
Console Off | On | Grey | Yellow
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) |
---|---|---|---|---|---|---|---|
0019547 | Coccinite | Schwarzenbach D, Birkedal H, Hostettler M, Fischer P (2007) Neutron diffraction investigation of the temperature dependence of crystal structure and thermal motions of red HgI2 Acta Crystallographica B63 828-835 | 2007 | synthetic, Fluka 83379 | 0 | 10 | |
0019548 | Coccinite | Schwarzenbach D, Birkedal H, Hostettler M, Fischer P (2007) Neutron diffraction investigation of the temperature dependence of crystal structure and thermal motions of red HgI2 Acta Crystallographica B63 828-835 | 2007 | synthetic, Fluka 83379 | 0 | 30 | |
0019549 | Coccinite | Schwarzenbach D, Birkedal H, Hostettler M, Fischer P (2007) Neutron diffraction investigation of the temperature dependence of crystal structure and thermal motions of red HgI2 Acta Crystallographica B63 828-835 | 2007 | synthetic, Fluka 83379 | 0 | 60 | |
0019550 | Coccinite | Schwarzenbach D, Birkedal H, Hostettler M, Fischer P (2007) Neutron diffraction investigation of the temperature dependence of crystal structure and thermal motions of red HgI2 Acta Crystallographica B63 828-835 | 2007 | synthetic, Fluka 83379 | 0 | 100 | |
0019551 | Coccinite | Schwarzenbach D, Birkedal H, Hostettler M, Fischer P (2007) Neutron diffraction investigation of the temperature dependence of crystal structure and thermal motions of red HgI2 Acta Crystallographica B63 828-835 | 2007 | synthetic, Fluka 83379 | 0 | 200 | |
0019552 | Coccinite | Schwarzenbach D, Birkedal H, Hostettler M, Fischer P (2007) Neutron diffraction investigation of the temperature dependence of crystal structure and thermal motions of red HgI2 Acta Crystallographica B63 828-835 | 2007 | synthetic, Fluka 83379 | 0 | 293 | |
0019553 | Coccinite | Schwarzenbach D, Birkedal H, Hostettler M, Fischer P (2007) Neutron diffraction investigation of the temperature dependence of crystal structure and thermal motions of red HgI2 Acta Crystallographica B63 828-835 | 2007 | synthetic, Fluka 83379 | 0 | 293 | |
0010671 | Coccinite | Schwarzenbach D (1969) The crystal structure and one-dimensional disorder of the orange modification of HgI2 Zeitschrift fur Kristallographie 128 97-114 | 1969 | synthetic | 0 | 293 | |
0016999 | Coccinite | Bijvoet J, Claassen A, Karssen A (1926) The crystal structure of red mercuric iodide _cod_database_code 1010063 Proceedings of the Koninklijke Nederlandse Academie van Wetenschappen 29 529-546 | 1926 | 0 | 293 |
CIF Raw Data - click here to close
Geological Environment
Paragenetic Mode(s):
Paragenetic Mode | Earliest Age (Ga) |
---|---|
High-𝑇 alteration and/or metamorphism | |
33 : Minerals deposited by hydrothermal metal-rich fluids (see also [#12]) | |
Stage 7: Great Oxidation Event | <2.4 |
47g : [Halogen-bearing surface weathering 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) |
Geological Setting:
Sublimation product from burning pyritic slate.
Type Occurrence of Coccinite
Place of Conservation of Type Material:
No designated type material.
Synonyms of Coccinite
Other Language Names for Coccinite
Spanish:Coccinita
Common Associates
Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat Grouping
3.AB. | Fluorocronite | PbF2 |
3.AB. | Manuelarossiite | PbCaAlF7 |
3.AB.05 | Tolbachite | CuCl2 |
3.AB.15 | Sellaite | MgF2 |
3.AB.20 | Chloromagnesite | MgCl2 |
3.AB.20 | Lawrencite | (Fe2+,Ni)Cl2 |
3.AB.20 | Scacchite | MnCl2 |
3.AB.25 | Fluorite | CaF2 |
3.AB.25 | Frankdicksonite | BaF2 |
3.AB.25 | Strontiofluorite | SrF2 |
3.AB.30 | Tveitite-(Y) | (Y, Na)6Ca6Ca6(Ca,Na)F42 |
3.AB.35 | Gagarinite-(Y) | NaCaYF6 |
3.AB.35 | Gagarinite-(Ce) | Na(REExCa1-x)(REEyCa1-y)F6 |
3.AB.35 | Polezhaevaite-(Ce) | NaSrCeF6 |
3.AB.37 | Calcioaravaipaite | PbCa2AlF9 |
3.AB.85 | Cotunnite | PbCl2 |
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 Coccinite
mindat.org URL:
https://www.mindat.org/min-1100.html
Please feel free to link to this page.
Please feel free to link to this page.
Search Engines:
External Links:
Mineral Dealers:
References for Coccinite
Reference List:
Localities for Coccinite
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.
Australia | |
| Moses (1901) +2 other references |
Germany | |
| Lapis 2001 (6) |
| Witzke (1997) |
Mexico (TL) | |
| Antonio del Castillo (1889) +1 other reference |
Quick NavTopAbout CocciniteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Chemistry Crystallography Crystal StructureGeological EnvironmentType Occurrence SynonymsOther LanguagesCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
Backofen Mine, Landsberg, Obermoschel, Nordpfälzer Land, Donnersbergkreis, Rhineland-Palatinate, Germany