Constituent
- Name
- Na2Ca(CO3)2 - phase alpha
- Official name
- alpha Dinatrium calcium carbonate
- Family
- ionic solid
- Class
- normal salt
- Compound type
- carbonate
- Formula
- Na⁺2Ca2+ · (CO32-)2
- Chemical formula
- Na2Ca(CO3)2
- Elemental formula
- (Na+)2 (Ca2+) C2 (O-)6
- Isotope mixture type
- terrestrial abundance
- Class
- normal salts (07)
- Type
- double normal salts (07.02)
- Phase name
- α-Na2Ca(CO3)2
- Phase type
- crystalline
- Crystal system
- orthorhombic
- Crystal class
- dipyramidal
- Crystal class symbol
- mmm (D2h)
- Crystal spacegroup
- Pbca
- Molar mass
- 206.08 g/mol
- Density
- 2.46 g/cm3
- Refringence type
- biaxial
- Refringence sign
- negative
- Birefringence
- 0.0230
- Refraction index nα
- 1.511
- Refraction index nβ
- 1.533
- Refraction index nγ
- 1.534
- Color
- colorless, white
- Diaphaneity
- transparent