Mineralogy Database

Moschelite Mineral Data

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General Moschelite Information

Help on Chemical  Formula: Chemical Formula: Hg+2I2
Help on Composition: Composition: Molecular Weight = 654.99 gm
   Mercury  61.25 %  Hg   63.69 % Hg2O
   Iodine   38.75 %  I    38.75 % I
              -   %   I    -2.44 % -O=I2    
           ______        ______ 
           100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Hg2I2
Help on Environment: Environment: From the mine dumps.
Help on IMA Status: IMA Status: Approved IMA 1989
Help on Locality: Locality: Backofen mine, Moschel landsberg district, Opermoschel, Rhineland Pjalz, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: After the locality.
Help on Name Pronunciation: Name Pronunciation: Moschelite + Pronunciation Say MOSCHELITE
Help on Synonym: Synonym: ICSD 35543
  PDF 6-245

Moschelite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:2.35772
Help on Cell Dimensions: Cell Dimensions: a = 4.92, c = 11.6, Z = 2; V = 280.79 Den(Calc)= 7.75
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: I 4/mmm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.483(1), 2.231(0.9), 2.896(0.6),

Physical Properties of Moschelite

Help on Cleavage: Cleavage: {???} Imperfect
Help on Color: Color: Lemon yellow, Dark olive green.
Help on Diaphaneity: Diaphaneity: Translucent to Opaque
Help on Fracture: Fracture: Brittle - Sectile - Brittle fracture with slightly sectile shavings possible.
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 1.5-2 - Talc-Gypsum
Help on Luster: Luster: Adamantine
Help on Streak: Streak: brown

Optical Properties of Moschelite

Help on Optical Data: Optical Data: NCalc= 2.39 - from Gladstone-Dale relationship (KC = 0.1797) where Ncalc=Dcalc*KC+1

Calculated Properties of Moschelite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=6.29 gm/cc
note: Specific Gravity of Moschelite =7.75 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.18
Boson Index = 0.82
Help on Photoelectric: Photoelectric: PEMoschelite =1,227.94 barns/electron
U=PEMoschelite x rElectron Density=7,729.61 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Moschelite is Not Radioactive

Moschelite Classification

Help on  Dana Class: Dana Class: (09)Anhydrous and Hydrated Halides
  (09.01)where A X
  (09.01.08)Calomel Group Calomel Hg2Cl2 I 4/mmm 4/m 2/m 2/m Kuzminite Hg2(Br,Cl)2 I 4/mmm 4/m 2/m 2/m Moschelite Hg2I2 I 4/mmm 4/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 03.AA.30 03 - HALIDES
  03.A - Simple Halides, Without H2O
  03.AA -M:X = 1:1, 2:3, 3:5, etc.
03.AA.30 Calomel Hg2Cl2 I 4/mmm 4/m 2/m 2/m
03.AA.30 Kuzminite Hg2(Br,Cl)2 I 4/mmm 4/m 2/m 2/m
03.AA.30 Moschelite Hg2I2 I 4/mmm 4/m 2/m 2/m

Other Moschelite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.75,p1211,1990)
Help on See Also: See Also: Links to other databases for Moschelite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 03.AA.30





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