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Coccinite

Big Photo

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

Formula:
HgI
 
2
System:TetragonalColour:Orange-Red
Lustre:
This page provides mineralogical data about Coccinite.

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

Relationship of Coccinite to other Species

Related Minerals - Nickel-Strunz Grouping):
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.30Tveitite-(Y)
(Y, Na)
 
6
Ca
 
6
Ca
 
6
F
 
42
3.AB.35Gagarinite-(Y)
NaCaY(F,Cl)
 
6
3.AB.35Zajacite-(Ce)
Na(REE
 
x
Ca
 
1-x
)(REE
 
y
Ca
 
1-y
)F
 
6

Other Names for Coccinite

Synonyms:
Iodic Quicksilver
French names:
Iodure de MercureMercure ioduré
German names:
CoccinitIodquecksilberQuecksilberjodid
Spanish names:
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.

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
  • American Mineralogist Crystal Structure Database
  • Search for Coccinite in the Natural History Museum (London) online catalogue
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  • Find Coccinite on www.crystalclassics.co.uk
  • Search for Coccinite at Thames Valley Minerals
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    Localities for Coccinite

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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
      • Obermoschel
        • Landsberg Mt. (Moschellandsberg Mt.)
    		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.
    Mineral and/or Locality
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