Tachyhydrite: Difference between revisions

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{{Infobox_Salt
{{Infobox_Salt
|Footnote            =
|Footnote            =<ref>http://webmineral.com/data/Tachyhydrite.shtml viewed on 29/07/2010</ref><ref>http://www.mindat.org/min-3865.html viewed on 29/07/2010</ref>
|photo                =  [[Image:"file name"|300px]]
|photo                =  <!--[[Image:"file name"|300px]]-->
|mineralogical_Name  =
|mineralogical_Name  =Tachyhydrite
|chemical_Name        =
|chemical_Name        =Calciummagnesiumchloride dodecahydrate
|Trivial_Name        =
|Trivial_Name        =
|chemicalFormula     =
|chemical_Formula     =CaMg<sub>2</sub>Cl<sub>6</sub>•12H<sub>2</sub>O
|Hydratforms          =
|Hydratforms          =
|Crystal_Class        =
|Crystal_Class        =trigonal
|Deliqueszenzhumidity =
|Deliqueszenzhumidity =
|Solubility          =
|Solubility          =
|Density              =
|Density              =1.667 g/cm<sup>3</sup>
|MolVolume            =
|MolVolume            =309,9 cm<sup>3</sup>/mol
|Molweight            =
|Molweight            =517,7 g/mol
|Transparency        =
|Transparency        =transparent
|Cleavage            =
|Cleavage            =perfect
|Crystal_Habit        =
|Crystal_Habit        =
|Twinning            =
|Twinning            =
|Refractive_Indices  =
|Refractive_Indices  =n<sub>o</sub>= 1,520-1,522<br> n<sub>e</sub> = 1,512-1,513
|Birefringence        =
|Birefringence        =Δ = 0,008-0,009
|optical_Orientation  =
|optical_Orientation  =negative
|Pleochroism          =
|Pleochroism          =
|Dispersion          =
|Dispersion          =
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back to [[Chloride]]
back to [[Chloride]]
==Weblinks==
<references/>
[[Category:Tachyhydrite]][[Category:Chloride]][[Category:Salt]][[Category:InProgress]]
[[Category:Tachyhydrite]][[Category:Chloride]][[Category:Salt]][[Category:InProgress]]

Revision as of 13:41, 9 June 2011

Tachyhydrite[1][2]
Mineralogical name Tachyhydrite
Chemical name Calciummagnesiumchloride dodecahydrate
Trivial name
Chemical formula CaMg2Cl6•12H2O
Other forms
Crystal system {{{Crystal_System}}}
Crystal structure {{{Crystal_Structure}}}
Deliquescence humidity 20°C
Solubility (g/l) at 20°C
Density (g/cm³) 1.667 g/cm3
Molar volume 309,9 cm3/mol
Molar weight 517,7 g/mol
Transparency transparent
Cleavage perfect
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments
Crystal Optics
Refractive Indices no= 1,520-1,522
ne = 1,512-1,513
Birefringence Δ = 0,008-0,009
Optical Orientation negative
Pleochroism
Dispersion
Used Literature
{{{Literature}}}


back to Chloride

Weblinks[edit]