Mineral phase
IMA name
Gaspéite
Secondary names
Nickel carbonate; Ni carbonate; Gaspeite
IMA Code
Gpé
Class
non-silicate mineral
Compound type
carbonate
Formula
Ni2+CO3
Chemical formula
NiCO3
Elemental formula
(Ni2+) C O (O-)2
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Isotope mole fraction State Relevance
Ni2+ Nickel cation element 1 constituent element main
(CO3)2 Carbonate anion chemical function 1 anionic radical main
Chemical functions
  Function Number
(CO3)2 1
Chemical bonds
  Bond Number
Ni2+O 2
CO2/3 3
Oxides
Formula NiO CO2
Mass fraction (%)

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
14.01.01.08
Phase type
crystalline
Crystal system
trigonal
Crystal class
ditrigonal-scalenohedral
Crystal class symbol
-3m (D3d)
Crystal spacegroup
R-3c
Molar mass
118.702 g/mol
Density
3.71 (calc.: 3.748) g/cm3
State NTP
solid
Refringence type
uniaxial
Refringence sign
negative
Birefringence
0.2200
Refraction index no (w)
1.83
Refraction index ne (e)
1.61
Pure color
light green
Color
light green, apple green
Diaphaneity
transparent to translucent
Luster
vitreous