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Coccinite

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Big Photo

Lichtenberg open cast, Ronneburg U deposit, Gera, Thuringia, Germany
© Thomas Witzke




Formula:
HgI
 
2
System:TetragonalColour:Orange-red
Lustre:


See also the other known natural mercury iodide, moschelite.

Classification of Coccinite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Nickel-Strunz 10th (pending) edition ID:3.AB.10

3 : HALIDES
A : Simple halides, without H2O
B : M:X = 1:2
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Type Occurrence of Coccinite

Type Locality:Casas Viejas, Mexico

Physical Properties of Coccinite

Colour:Orange-red

Crystallography of Coccinite

Crystal System:Tetragonal

Chemical Properties of Coccinite

Formula:
HgI
 
2
Essential elements:Hg, I
All elements listed in formula:Hg, I
CAS Registry number:7774-29-0

CAS Registry numbers are published by the American Chemical Society

Relationship of Coccinite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
3.AB.Fluorocronite
PbF
 
2
3.AB.05Tolbachite
CuCl
 
2
3.AB.15Sellaite
MgF
 
2
3.AB.20Chloromagnesite
MgCl
 
2
3.AB.20Lawrencite
(Fe
2+
 
,Ni)Cl
 
2
3.AB.20Scacchite
MnCl
 
2
3.AB.25Fluorite
CaF
 
2
3.AB.25Frankdicksonite
BaF
 
2
3.AB.25IMA2009-014
SrF
 
2
3.AB.30Tveitite-(Y)
(Y, Na)
 
6
Ca
 
6
Ca
 
6
F
 
42
3.AB.35Gagarinite-(Y)
NaCaYF
 
6
3.AB.35Gagarinite-(Ce)
Na(REE
 
x
Ca
 
1-x
)(REE
 
y
Ca
 
1-y
)F
 
6
3.AB.35Polezhaevaite-(Ce)
NaSrCeF
 
6

Other Names for Coccinite

Synonyms:
Iodic Quicksilver
Other Languages:
French:Iodure de Mercure
Mercure ioduré
German:Coccinit
Iodquecksilber
Quecksilberjodid
Spanish:Coccinita

Other Information

Health Warning:No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
External LinksSearch for toxicity information at the United States National Library of Medicine

References for Coccinite

Reference List:

- +
Del Rio (1829) Annales des mines: 5: 324 (as Iodure de Mercure).

Beudant, F.S. (1832), Trailé élémentaire de Minéralogie, second edition, 2 volumes: 2: 515 (as Iodure de Mercure).

Haidinger (1845): 572 (as Coccinit).

Moses (1901) American Journal of Science: 12: 98.

Smith (1926) Department of Mines, New South Wales, Mineral Resources, no. 34, 20, 42.

Palache, Charles, Harry Berman & Clifford Frondel (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 42.

Witzke, T. (1997): New data on the mercury iodide mineral coccinite, HgI2. Neues Jahrbuch für Mineralogie, Abhandlungen: 505-510.

Internet Links for Coccinite

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  • Raman and XRD data at RRUFF project
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    • Localities for Coccinite

    The 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.
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    (TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
    Australia
     
    • New South Wales
      • Yancowinna Co.
    		A.J. Moses (1901) Zeitschr. f. Kryst. 35, 417-418; G. Nottes & U. Heidtke (1986) Aufschluss 37, 31-36
    Germany
     
    • Rhineland-Palatinate
      • Palatinate
        • Alsenz-Obermoschel
          • Landsberg (Moschellandsberg)
    		Lapis 2001(6), 13-40
    • Thuringia
      • Gera
        • Ronneburg U deposit
    		T. Witzke (1997) New data on the mercury iodide mineral coccinite, HgI2.- N. Jb. Miner., Mh., 505-510
    Mexico
     
    Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 42.
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