Moschelite Mineral Data (original) (raw)
General Moschelite Information
Chemical Formula:
Hg+2I2
Composition:
Molecular Weight = 654.99 gm
Mercury 61.25 % Hg 63.69 % Hg2O
Iodine 38.75 % I 38.75 % I
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
Hg2I2
Environment:
From the mine dumps.
IMA Status:
Approved IMA 1989
Locality:
Backofen mine, Moschel landsberg district, Opermoschel, Rhineland Pjalz, Germany. Link to MinDat.org Location Data.
Name Origin:
After the locality.
Name Pronunciation:
Moschelite + Pronunciation 
Synonym:
ICSD 35543
PDF 6-245
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Moschelite Crystallography
Axial Ratios:
a:c = 1:2.35772
Cell Dimensions:
a = 4.92, c = 11.6, Z = 2; V = 280.79 Den(Calc)= 7.75
Crystal System:
Tetragonal - Ditetragonal DipyramidalH-M Symbol (4/m 2/m 2/m) Space Group: I 4/mmm
X Ray Diffraction:
By Intensity(I/Io): 3.483(1), 2.231(0.9), 2.896(0.6),
Physical Properties of Moschelite
Cleavage:
{???} Imperfect
Color:
Lemon yellow, Dark olive green.
Diaphaneity:
Translucent to Opaque
Fracture:
Brittle - Sectile - Brittle fracture with slightly sectile shavings possible.
Habit:
Encrustations - Forms crust-like aggregates on matrix.
Habit:
Microscopic Crystals - Crystals visible only with microscopes.
Habit:
Platy - Sheet forms (e.g. micas).
Hardness:
1.5-2 - Talc-Gypsum
Luster:
Adamantine
Streak:
brown
Optical Properties of Moschelite
Optical Data:
NCalc= 2.39 - from Gladstone-Dale relationship (KC = 0.1797) where Ncalc=Dcalc*KC+1
Calculated Properties of Moschelite
Electron Density:
Bulk Density (Electron Density)=6.29 gm/cc
note: Specific Gravity of Moschelite =7.75 gm/cc.
Fermion Index:
Fermion Index = 0.18
Boson Index = 0.82
Photoelectric:
PEMoschelite =1,227.94 barns/electron
U=PEMoschelite x rElectron Density=7,729.61 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Moschelite is Not Radioactive
Moschelite Classification
Dana Class:
09.01.08.03 (09)Anhydrous and Hydrated Halides
(09.01)where A X
(09.01.08)Calomel Group
09.01.08.01 Calomel Hg2Cl2 I 4/mmm 4/m 2/m 2/m
09.01.08.02 Kuzminite Hg2(Br,Cl)2 I 4/mmm 4/m 2/m 2/m
09.01.08.03 Moschelite Hg2I2 I 4/mmm 4/m 2/m 2/m
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
References:
NAME( Dana8) PHYS. PROP.(Am.Min.,Vol.75,p1211,1990)
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
15 - WWW-MINCRYST
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Print or Cut-and-Paste your Moschelite Specimen Label here :
Moschelite
Hg+2I2
Dana No: 09.01.08.03 Strunz No: 03.AA.30
Locality:
Notes: