Weddellite

Weddellite
Mineralogical name	Weddellite
Chemical name	Calcium oxalate dihydrate
Trivial name
Chemical formula	Ca(C2O4)•2H2O
Other forms
Crystal system	tetragonal
Crystal structure
Deliquescence humidity 20°C
Solubility (g/l) at 20°C
Density (g/cm³)	2,02 g/cm³
Molar volume
Molar weight	164,13 g/mol
Transparency
Cleavage
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments	not soluble in water
Crystal Optics
Refractive Indices	no = 1,523 ne = 1,544
Birefringence	Δ = 0,021
Optical Orientation	positive
Pleochroism
Dispersion
Used Literature
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A phase is a physically distinctive form of matter and is characterized by having relatively uniform chemical and physical properties.