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Moschelite

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Formula:
HgI
System:
Tetragonal
Colour:
Citrus-yellow, changing ...
Lustre:
Adamantine
Hardness:
1 - 2
See also the other known natural mercury iodide, coccinite.


Classification of Moschelite

Approved
3.AA.30

3 : HALIDES
A : Simple halides, without H2O
A : M:X = 1:1, 2:3, 3:5, etc.
9.1.8.3

9 : NORMAL HALIDES
1 : AX
8.5.10

8 : Halides - Fluorides, Chlorides, Bromides and Iodides; also Fluoborates and Fluosilicates
5 : Halides of Zn and Hg

Physical Properties of Moschelite

Adamantine
Colour:
Citrus-yellow, changing immediately to dark olive-green on exposure to light
Streak:
Brown
Hardness (Mohs):
1 - 2
Tenacity:
Sectile

Chemical Properties of Moschelite

IMA Formula:
HgI
Elements listed in formula:

Crystallography of Moschelite

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
I4/mmm
Cell Parameters:
a = 4.8974(9) Å, c = 11.649(2) Å
Ratio:
a:c = 1 : 2.379
Unit Cell Volume:
V 279.4 ų
Z:
2
Twinning:
May be twinned by non-merohedry.
X-Ray Powder Diffraction Data:
d-spacingIntensity
3.483 (10)
2.231 (9)
2.896 (6)
2.099 (6)
4.537 (2)
1.881 (2)
1.242 (2)

Type Occurrence of Moschelite

Relationship of Moschelite to other Species

3.AA.05MarshiteCuI
3.AA.05Miersite(Ag,Cu)I
3.AA.05NantokiteCuCl
3.AA.05UM1999-11:I:CuSCu(I,S)
3.AA.10IodargyriteAgI
3.AA.10Tocornalite(Ag,Hg)I
3.AA.15BromargyriteAgBr
3.AA.15ChlorargyriteAgCl
3.AA.20CarobbiiteKF
3.AA.20GriceiteLiF
3.AA.20HaliteNaCl
3.AA.20SylviteKCl
3.AA.20VilliaumiteNaF
3.AA.25SalammoniacNH4Cl
3.AA.25UM1998-03-Cl:TlTlCl
3.AA.25LafossaiteTlCl
3.AA.30CalomelHgCl
3.AA.30KuzminiteHg(Br,Cl)
3.AA.35NeighboriteNaMgF3
3.AA.40ChlorocalciteKCaCl3
3.AA.45KolaritePbTeCl2
3.AA.50RadhakrishnaitePbTe3(Cl,S)2
3.AA.55ChallacolloiteKPb2Cl5
3.AA.60HephaistositeTlPb2Cl5
8.5.1SimonkolleiteZn5(OH)8Cl2 · H2O
8.5.2CalomelHgCl
8.5.3TerlinguaiteHg2OCl
8.5.4PoyarkoviteHg3OCl
8.5.5PinchiteHg5O4Cl2
8.5.6EglestoniteHg61+OCl3(OH)
8.5.7KadyreliteHg61+Br3O1.5
8.5.8ComancheiteHg552+N243-(NH2,OH)4(Cl,Br)34
8.5.9KuzminiteHg(Br,Cl)
8.5.11Tocornalite(Ag,Hg)I

Other Names for Moschelite

Name in Other Languages:
German:Moschelit
Spanish:Moschelita

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.

References for Moschelite

Reference List:
Krupp, R., Nottes, G. & Heidtke, U. (1985) Naturally occurring halogen compounds, especially mercury iodide, from Moschellandsberg, Pfalz, West Germany. Aufschluss, 36, 73-80 (in German). [as 'Unnamed Hg2I2']

Krupp, E. R.; Nottes, G.; Heidtke, U. (1989): Moschelite (Hg2J2): a new mercury mineral from Landsberg-Obermoschel. Neues Jahrbuch für Mineralogie, Monatshefte 1989, 524-526.

M. Kars, T. Roisnel, V. Dorcet, A. Rebbah and O.-D. L. Carlos (2012): Redetermination of Hg2I2. Acta Crystallogr. E68, i11.

Internet Links for Moschelite

mindat.org URL:
https://www.mindat.org/min-2788.html
Please feel free to link to this page.

Localities for Moschelite

(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? 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.
Germany (TL)
 
  • Rhineland-Palatinate
    • Palatinate
      • Alsenz-Obermoschel
        • Landsberg (Moschellandsberg)
Krupp, R., Nottes, G. & Heidtke, U. (1985) Naturally occurring halogen compounds, especially mercury iodide, from Moschellandsberg, Pfalz, West Germany. Aufschluss, 36, 73-80 (in German).; Krupp, E. R.; Nottes, G.; Heidtke, U. (1989): Moschelite (Hg2J2): a new mercury mineral from Landsberg-Obermoschel. Neues Jahrbuch für Mineralogie, Monatshefte 1989, 524-526.; Lapis 2001(6), 13-40
Mineral and/or Locality  
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