Nahcolite

Nahcolite
Mineralogical name	Sodium hydrogen carbonate
Chemical name	Nahcolite
Trivial name
Chemical formula	NaHCO3
Other forms
Crystal system	monoclinic
Crystal structure
Deliquescence humidity 20°C
Solubility (g/l) at 20°C
Density (g/cm³)	2,2 g/cm³
Molar volume	37,99 cm3/mol
Molar weight	84,01 g/mol
Transparency	transparent to translucent
Cleavage	perfect
Crystal habit
Twinning
Phase transition
Chemical behavior
Comments
Crystal Optics
Refractive Indices	nx = 1,376 ny = 1,500 nz = 1,582
Birefringence	Δ = 0,206
Optical Orientation	biaxial negative
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.