Constituent
- Name
- Calcite
- IMA name
- Calcite
- Class
- non-silicate mineral
- Compound type
- carbonate
- Relevance
- impurity
- Arrangement
- coated core
- Mass fraction
- 5e-05 $\pm$ 2e-05
- Abundance comments
- poorly known Calcite mass fraction, probably < 0.007 (for raw Swy-2 and 0.004 for < 2µm size - Vogt 2002)
- Formula
- $CaCO_3$
- Chemical formula
- CaCO3
- Elemental formula
- Ca C O3
- Isotope mixture type
- terrestrial abundance
- Oxides
-
Formula $CaO$ $CO_{2}$ Mass fraction (%) 56.03 43.97
Strunz
- Class
- carbonates - nitrates (05)
- Division
- carbonates without additional anions, without H2O (05.A)
- Family
- Alkali-earth (and other M2+) carbonates (05.AB)
- Code
- 05.AB.05
Dana
- Major class
- carbonates, nitrates, borates (V)
- Class
- anhydrous carbonates (14)
- Type
- with simple formula A+CO3 (14.01)
- Group
- Calcite group (Trigonal: R-3c) (14.01.01)
- Code
- 14.01.01.01
- Phase type
- crystalline
- Crystal system
- trigonal
- Crystal class
- ditrigonal-scalenohedral
- Crystal class symbol
- -3m (D3d)
- Crystal spacegroup
- R-3c
- Molar mass
- 100.09 $g/mol$
- Density
- 2.71 $g/cm^3$
- Refringence type
- uniaxial
- Refringence sign
- negative
- Birefringence
- 0.172
- Refraction index $n_{\alpha}$
- 1.658
- Refraction index $n_{\beta}$
- 1.486
- Color
- colorless, white, pink, yellow, brown
- Diaphaneity
- transparent to translucent
- Luster
- vitreous