Corderoite
A valid IMA mineral species
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About Corderoite
Formula:
Hg2+3S2Cl2
Colour:
Light orange-pink, salmon pink brown; turns pale grey, then black on prolonged exposure to light.
Hardness:
3
Specific Gravity:
6.845 (Calculated)
Crystal System:
Isometric
Name:
Named for the Cordero mine, the type locality. The current McDermitt mine now includes the older Cordero mine complex.
Polymorph of:
This page provides mineralogical data about Corderoite.
Unique Identifiers
Mindat ID:
1127
Long-form identifier:
mindat:1:1:1127:9
Similar Names
| Cordierite | A valid IMA mineral species - grandfathered | Mg2Al4Si5O18 |
IMA Classification of Corderoite
Approved
IMA Formula:
Hg3S2Cl2
Approval year:
1973
First published:
1974
Classification of Corderoite
2.FC.15a
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
C : With Cl, Br, I (halide-sulfides)
2 : SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulfantimonites, sulfbismuthites, etc.)
F : Sulfides of arsenic, alkalies; sulfides with halide, oxide, hydroxide, H2O
C : With Cl, Br, I (halide-sulfides)
10.3.3.1
10 : OXYHALIDES AND HYDROXYHALIDES
3 : A3(O,OH)2Xq
10 : OXYHALIDES AND HYDROXYHALIDES
3 : A3(O,OH)2Xq
6.5.1
6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
5 : Sulphohalides
6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
5 : Sulphohalides
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 |
|---|---|---|
| Cde | 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 Corderoite
Transparency:
Transparent
Colour:
Light orange-pink, salmon pink brown; turns pale grey, then black on prolonged exposure to light.
Hardness:
3 on Mohs scale
Hardness:
VHN25=28 - 61 kg/mm2 - Vickers
Comment:
Vickers hardness on synthetic material
Density:
6.845 g/cm3 (Calculated)
Optical Data of Corderoite
Type:
Isotropic
Comments:
RI > 2.5
Chemistry of Corderoite
Mindat Formula:
Hg2+3S2Cl2
Elements listed:
Crystallography of Corderoite
Crystal System:
Isometric
Class (H-M):
m3(2/m3) - Diploidal
Cell Parameters:
a = 8.940(5) Å
Unit Cell V:
714.52 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Rims and replacements of cinnabar, grains less than 2 microns.
Comment:
Space Group: I213.
Crystal Structure
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Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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2x2x2 | 3x3x3 | 4x4x4
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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) |
|---|---|---|---|---|---|---|---|
| 0009337 | Corderoite | Frueh A J, Gray N (1968) Confirmation and refinement of the structure of Hg3S2Cl2 Acta Crystallographica B24 156-157 |  | 1968 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.62 Å | (100) |
| 2.57 Å | (70) |
| 1.749 Å | (60) |
| 2.81 Å | (50) |
| 2.38 Å | (40) |
| 2.10 Å | (40) |
| 6.23 Å | (30) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Near-surface Processes | |
| 25 : Evaporites (prebiotic) | |
| Stage 7: Great Oxidation Event | <2.4 |
| 47g : [Halogen-bearing surface weathering minerals] |
Type Occurrence of Corderoite
General Appearance of Type Material:
Rare as cubic crystals, to 2 mm
Place of Conservation of Type Material:
Stanford University, Palo Alto, California; National Museum of Natural History, Washington, D.C., USA, 133354.
Geological Setting of Type Material:
In lake bed sediments
Associated Minerals at Type Locality:
Synonyms of Corderoite
Other Language Names for Corderoite
Common Associates
Associations Based on Photo Data:
| 37 photos of Corderoite associated with Cinnabar | HgS |
| 17 photos of Corderoite associated with Kenhsuite | Hg2+3S2Cl2 |
| 13 photos of Corderoite associated with Quartz | SiO2 |
| 8 photos of Corderoite associated with Tiemannite | HgSe |
| 5 photos of Corderoite associated with Iltisite | HgAgSCl |
| 5 photos of Corderoite associated with 'Chalcedony' | SiO2 |
| 4 photos of Corderoite associated with Parnauite | Cu9(AsO4)2(SO4)(OH)10 · 7H2O |
| 4 photos of Corderoite associated with Kleinite | (Hg2N)(Cl,SO4) · nH2O |
| 4 photos of Corderoite associated with Hewettite | CaV6O16 · 9H2O |
| 3 photos of Corderoite associated with Perroudite | Hg5Ag4S5(I,Br)2Cl2 |
Related Minerals - Strunz-mindat Grouping
| 2.FC. | Demicheleite-(I) | BiSI |
| 2.FC.05 | Djerfisherite | K6(Fe,Cu,Ni)25S26Cl |
| 2.FC.05 | Owensite | (Ba,Pb)6(Cu,Fe,Ni)25S27 |
| 2.FC.05 | Thalfenisite | Tl6(Fe,Ni,Cu)25S26Cl |
| 2.FC.05 | Gmalimite | K6◻Fe2+24S27 |
| 2.FC.05 | 'Cu-djerfisherite' | K6(Cu,Fe)25S26Cl |
| 2.FC.05 | Zoharite | (Ba,K)6(Fe,Cu,Ni)25S27 |
| 2.FC.10 | Bartonite | K6Fe20S26S |
| 2.FC.10 | Chlorbartonite | K6Fe24S26(Cl,S) |
| 2.FC.15d | Radtkeite | Hg2+3S2ICl |
| 2.FC.15a | Lavrentievite | Hg3S2Cl2 |
| 2.FC.15a | 'Arzakite' | Hg2+3S2(Br,Cl)2 |
| 2.FC.15c | Grechishchevite | Hg2+3S2(Br,Cl,I)2 |
| 2.FC.15b | Kenhsuite | Hg2+3S2Cl2 |
| 2.FC.20b | Iltisite | HgAgSCl |
| 2.FC.20c | Perroudite | Hg5Ag4S5(I,Br)2Cl2 |
| 2.FC.20a | Capgaronnite | AgHgClS |
| 2.FC.20d | Hanauerite | AgHgSI |
| 2.FC.25 | Demicheleite-(Cl) | BiSCl |
| 2.FC.25 | Demicheleite-(Br) | BiSBr |
Other Information
Special Storage/
Display Requirements:
Display Requirements:
On exposure to light darkens to light gray and finally to black.
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 Corderoite
mindat.org URL:
https://www.mindat.org/min-1127.html
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References for Corderoite
Reference List:
Frueh Jnr, A. J., Gray, N. (1968) Confirmation and refinement of the structure of Hg3S2Cl2. Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry, 24 (1) 156-157 doi:10.1107/s0567740868001858
Localities for Corderoite
Showing 25 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.
Argentina | |
| Rudashevsky et al. (2018) |
Chile | |
| SEM-EDS by Joy Desor +1 other reference |
France | |
| Favreau et al. (2014) |
| Cap Garonne mine museum | |
Germany | |
| Hartmut Hensel collection |
| Hartmut Hensel collection |
| Dreyer (1975) |
Iran | |
| Daliran (2008) |
Kyrgyzstan | |
| Vasil'yev et al. (1982) +2 other references |
| Kolesar et al. (1993) | |
Russia | |
| Pekov (1998) +2 other references |
| Pekov (1998) +1 other reference |
Spain | |
| Mendoza et al. (2006) +1 other reference |
| Calvo Rebollar et al. (2022) +1 other reference |
| Viñals et al. (2007) |
| Tritlla et al. (1991) | |
USA | |
| U.S. Geological Survey Open-File Report ... |
| Newmont Mining Corporation |
| Jensen et al. (1995) |
| McCormack et al. (1998) +1 other reference |
| Castor et al. (2004) |
| John et al. (1989) | |
| McCormack (2000) |
| Mineral News: 13 (3) |
| Collected by and in the collection of ... |
Quick NavTopAbout CorderoiteUnique IdentifiersSimilar NamesIMA 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
Hohe Buche, Hinzweiler, Lauterecken-Wolfstein, Kusel, Rhineland-Palatinate, Germany