Thaumasite: Difference between revisions

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{{Infobox_Salt
|Footnote            = <ref>http://webmineral.com/data/Thaumasite.shtml  viewed on 29/07/2010</ref><ref>http://www.mindat.org/min-3933.html  viewed on 29/07/2010</ref>
|photo                = <!-- [[Image:"file name"|300px]]-->
|mineralogical_Name  = Thaumasite
|chemical_Name        = Calcium silicate carbonate sulfate dodekahydrate
|Trivial_Name        =
|chemical_Formula      = Ca<sub>3</sub>Si(OH)<sub>6</sub>(CO<sub>3</sub>)(SO<sub>4</sub>)•<br>12H<sub>2</sub>O
|Hydratforms          =
|Crystal_System      =
|Crystal_Structure    =
|Deliqueszenzhumidity =
|Solubility          =
|Density              = 1.88-1.9 g/cm<sup>3</sup>
|MolVolume            =
|Molweight            = 622.4 g/mol
|Transparency        = transparent to translucent
|Cleavage            = indistinct to poor
|Crystal_Habit        =
|Twinning            =
|Refractive_Indices  = n<sub>o</sub> = 1.491<br> n<sub>e</sub> = 1.470
|Birefringence        = Δ = 0.039
|optical_Orientation  = negative
|Pleochroism          =
|Dispersion          =
|Phase_Transition    =
|chemBehavior        =
|Comments            = insoluble in water
|Literature          =
}}
 
 
==Weblinks==
<references/>
 
==Literature==
 
<biblist/>
 
[[Category:Thaumasite]][[Category:Sulphate]][[Category:Salt]][[Category:InProgress]][[Category:Sulfate]][[Category:List]]

Latest revision as of 21:54, 15 February 2015

back to Sulfate

Thaumasite[1][2]
Mineralogical name Thaumasite
Chemical name Calcium silicate carbonate sulfate dodekahydrate
Trivial name
Chemical formula Ca3Si(OH)6(CO3)(SO4)•
12H2O
Other forms
Crystal system
Crystal structure
Deliquescence humidity 20°C
Solubility (g/l) at 20°C
Density (g/cm³) 1.88-1.9 g/cm3
Molar volume
Molar weight 622.4 g/mol
Transparency transparent to translucent
Cleavage indistinct to poor
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments insoluble in water
Crystal Optics
Refractive Indices no = 1.491
ne = 1.470
Birefringence Δ = 0.039
Optical Orientation negative
Pleochroism
Dispersion
Used Literature



Weblinks[edit]

Literature[edit]

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