Hydrohalite Mineral Data (original) (raw)
General Hydrohalite Information
Chemical Formula:
NaCl•2(H2O)
Composition:
Molecular Weight = 94.47 gm
Sodium 24.33 % Na 32.80 % Na2O
Hydrogen 4.27 % H 38.14 % H2O
Chlorine 37.53 % Cl 37.53 % Cl
Oxygen 33.87 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
NaCl•2(H2O)
Environment:
Halite saturated brines in cold weather (-5 deg. C).
IMA Status:
Valid Species (Pre-IMA) 1847
Locality:
Salzburg, Germany. Link to MinDat.org Location Data.
Name Origin:
Named for its water content and similarity to halite in composition.
Name Pronunciation:
Hydrohalite + Pronunciation 
Synonym:
ICSD 2313
PDF 29-1197
Hydrohalite Image
Images:
Hydrohalite Crystallography
Axial Ratios:
a:b:c =0.6257:1:0.6427
Cell Dimensions:
a = 6.331, b = 10.118, c = 6.503, Z = 4; beta = 114.4° V = 379.36 Den(Calc)= 1.65
Crystal System:
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c
X Ray Diffraction:
By Intensity(I/Io): 2.52(1), 2.67(1), 2.98(1),
Crystal Structure:
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| | Klewe B , Pedersen B , Acta Crystallographica, Section B , 30 (1974) p.2363-2371, The crystal structure of sodium chloride dihydrate, Locality: synthetic | | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
Physical Properties of Hydrohalite
Color:
Colorless, White.
Density:
1.605 - 1.63, Average = 1.61
Diaphaneity:
Transparent
Calculated Properties of Hydrohalite
Electron Density:
Bulk Density (Electron Density)=1.68 gm/cc
note: Specific Gravity of Hydrohalite =1.65 gm/cc.
Fermion Index:
Fermion Index = 0.0001689814
Boson Index = 0.9998310186
Photoelectric:
PEHydrohalite = 2.85 barns/electron
U=PEHydrohalite x rElectron Density= 4.78 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hydrohalite is Not Radioactive
Hydrohalite Classification
Dana Class:
09.01.02.01 (09)Anhydrous and Hydrated Halides
(09.01)where A X
(09.01.02)Dana Group
09.01.02.01 Hydrohalite NaCl•2(H2O) P 21/c 2/m
Strunz Class:
03.BA.05 03 - HALIDES
03.B - Simple Halides, with H2O
03.BA -M:X = 1:1 and 2:3
03.BA.05 Hydrohalite NaCl•2(H2O) P 21/c 2/m
Other Hydrohalite Information
References:
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990)
See Also:
Links to other databases for Hydrohalite :
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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Print or Cut-and-Paste your Hydrohalite Specimen Label here :
Hydrohalite
NaCl•2(H2O)
Dana No: 09.01.02.01 Strunz No: 03.BA.05
Locality:
Notes: