Ettringite: Difference between revisions

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{{Infobox_Salt
{{Infobox_Salt
|Footnote            =
|Footnote            = <ref>http://webmineral.com/data/Ettringite.shtml  viewed on 29/07/2010</ref><ref>
|photo                = [[Image:"file name"|300px]]
http://www.mindat.org/min-1414.html  viewed on 29/07/2010</ref>
|mineralogical_Name  =
|photo                = <!-- [[Image:"file name"|300px]]-->
|chemical_Name        =
|mineralogical_Name  = Ettringite
|chemical_Name        = Calcium aluminium sulphate hydrate
|Trivial_Name        =
|Trivial_Name        =
|chemical_Formula      =
|chemical_Formula      = Ca<sub>6</sub>Al<sub>2</sub>(SO<sub>4</sub>)<sub>3</sub>(OH)<sub>12</sub>•26H<sub>2</sub>O
|Hydratforms          =
|Hydratforms          =
|Crystal_Class        =
|Crystal_Class        = hexagonal
|Crystal_Structure    =
|Crystal_Structure    =
|Deliqueszenzhumidity =
|Deliqueszenzhumidity =
|Solubility          =
|Solubility          =
|Density              =
|Density              = 1,8 g/cm<sup>3</sup>
|MolVolume            =
|MolVolume            =
|Molweight            =
|Molweight            = 1255,11 g/mol
|Transparency        =
|Transparency        =
|Cleavage            =
|Cleavage            =
|Crystal_Habit        =
|Crystal_Habit        =
|Twinning            =
|Twinning            =
|Refractive_Indices  =
|Refractive_Indices  = n<sub>o</sub> = 1,491<br>n<sub>e</sub> = 1,470
|Birefringence        =
|Birefringence        = Δ = 0,021
|optical_Orientation  =
|optical_Orientation  = negative
|Pleochroism          =
|Pleochroism          =
|Dispersion          =
|Dispersion          =

Revision as of 20:07, 3 June 2011

Ettringite[1][2]
Mineralogical name Ettringite
Chemical name Calcium aluminium sulphate hydrate
Trivial name
Chemical formula Ca6Al2(SO4)3(OH)12•26H2O
Other forms
Crystal system {{{Crystal_System}}}
Crystal structure
Deliquescence humidity 20°C
Solubility (g/l) at 20°C
Density (g/cm³) 1,8 g/cm3
Molar volume
Molar weight 1255,11 g/mol
Transparency
Cleavage
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments
Crystal Optics
Refractive Indices no = 1,491
ne = 1,470
Birefringence Δ = 0,021
Optical Orientation negative
Pleochroism
Dispersion
Used Literature
{{{Literature}}}


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