Corderoite (original) (raw)
A valid IMA mineral species
About CorderoiteHide
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Colour:
Light orange-pink, salmon pink brown; turns pale grey, then black on prolonged exposure to light.
Specific Gravity:
6.845 (Calculated)
Name:
Named for the Cordero mine, the type locality. The current McDermitt mine now includes the older Cordero mine complex.
This page provides mineralogical data about Corderoite.
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:1127:9
2ba7b270-8408-4e2f-9eb6-29088a8ad3fd
IMA Classification of CorderoiteHide
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Type description reference:
Foord, Eugene E., Berendsen, Pieter, Storey, and Lester O. (1974) Corderoite, first natural occurrence of α-Hg3S2Cl2, from the Cordero mercury deposit, Humboldt County, Nevada. American Mineralogist, 59 (7-8) 652-655
Classification of CorderoiteHide
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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)
10.3.3.1
10 : OXYHALIDES AND HYDROXYHALIDES
3 : A3(O,OH)2Xq
6.5.1
6 : Sulphosalts - Sulphostannates, Sulphogermanates,Sulpharsenates, Sulphantimonates, Sulphovanadates and Sulphohalides
5 : Sulphohalides
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| 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 CorderoiteHide
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Colour:
Light orange-pink, salmon pink brown; turns pale grey, then black on prolonged exposure to light.
Hardness:
VHN25=28 - 61 kg/mm2 - Vickers
Comment:
Vickers hardness on synthetic material
Density:
6.845 g/cm3 (Calculated)
Optical Data of CorderoiteHide
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Chemistry of CorderoiteHide
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Mindat Formula:
Hg2+3S2Cl2
Crystallography of CorderoiteHide
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Class (H-M):
m_3(2/m_3) - Diploidal
Cell Parameters:
a = 8.940(5) Å
Unit Cell V:
714.52 ų (Calculated from Unit Cell)
Morphology:
Rims and replacements of cinnabar, grains less than 2 microns.
Comment:
Space Group: I213.
Crystal StructureHide
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| 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 DiffractionHide
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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 EnvironmentHide
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Type Occurrence of CorderoiteHide
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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:
Associated Minerals at Type Locality:
Reference:
Foord, E.E., Berendsen, P., Storey, L.O. (1974) Corderoite, first natural occurrence of α-Hg3S2Cl2, from the Cordero mercury deposit, Humboldt County, Nevada. American Mineralogist: 59: 652-655.
Synonyms of CorderoiteHide
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Other Language Names for CorderoiteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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| 2.FC. | Demicheleite-(I) | BiSI | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
|---|---|---|---|
| 2.FC.05 | Djerfisherite | K6(Fe,Cu,Ni)25S26Cl | Iso. m_3_m _(_4/_m_32/m ) : P m_3_m |
| 2.FC.05 | Thalfenisite | Tl6(Fe,Ni,Cu)25S26Cl | Iso. |
| 2.FC.05 | Owensite | (Ba,Pb)6(Cu,Fe,Ni)25S27 | Iso. m_3_m _(_4/_m_32/m ) : P m_3_m |
| 2.FC.05 | Cu-djerfisherite | K6(Cu,Fe)25S26Cl | |
| 2.FC.05 | Zoharite | (Ba,K)6(Fe,Cu,Ni)25S27 | Iso. m_3_m _(_4/_m_32/m ) : P m_3_m |
| 2.FC.05 | Gmalimite | K6◻Fe2+24S27 | Iso. m_3_m _(_4/_m_32/m ) : P m_3_m |
| 2.FC.10 | Bartonite | K6Fe20S26S | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_4/m m m |
| 2.FC.10 | Chlorbartonite | K6Fe24S26(Cl,S) | Tet. 4/m m m _(_4/_m_2/_m_2/m ) : _I_4/m m m |
| 2.FC.15a | Arzakite | Hg2+3S2(Br,Cl)2 | Mon. |
| 2.FC.15c | Grechishchevite | Hg2+3S2(Br,Cl,I)2 | Tet. |
| 2.FC.15a | Lavrentievite | Hg2+3S2(Cl,Br)2 | Mon. |
| 2.FC.15d | Radtkeite | Hg2+3S2ICl | Mon. 2/m : _B_2/m |
| 2.FC.15b | Kenhsuite | Hg2+3S2Cl2 | Orth. |
| 2.FC.20a | Capgaronnite | AgHgClS | Orth. m m m _(_2/_m_2/_m_2/m ) |
| 2.FC.20c | Perroudite | Hg5Ag4S5(I,Br)2Cl2 | Orth. 222 : _P_21212 |
| 2.FC.20b | Iltisite | HgAgSCl | Hex. |
| 2.FC.20d | Hanauerite | AgHgSI | Orth. m m m _(_2/_m_2/_m_2/m ) : P m m a |
| 2.FC.25 | Demicheleite-(Br) | BiSBr | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
| 2.FC.25 | Demicheleite-(Cl) | BiSCl | Orth. m m m _(_2/_m_2/_m_2/m ) : P n m a |
Other InformationHide
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Special Storage/
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 CorderoiteHide
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References for CorderoiteHide
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Reference List:
Foord, Eugene E., Berendsen, Pieter, Storey, and Lester O. (1974) Corderoite, first natural occurrence of α-Hg3S2Cl2, from the Cordero mercury deposit, Humboldt County, Nevada. American Mineralogist, 59 (7-8) 652-655
Localities for CorderoiteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- 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.