Ikaite Ca(CO3 )·6 H2 O IMA symbol: Ika approved
Ikaite is a carbonate or nitrate mineral with the formula Ca(CO3)·6H2O, crystallizing in the monoclinic system. It has a calculated density of 1.834 g/cm3. Its streak is white.
Crystallography Crystal system monoclinic crystal systemWikidata (CC0) Space group C 1 2/c 1 Cell (Å, °) a = 8.792, b = 8.31, c = 11.021; α = 90, β = 110.53, γ = 90 Cell volume 754.071 ų, Z = 4 Axial ratios 1.0580:1:1.3262calculated from COD 9008306 Source structure COD 9008306 (Zeitschrift fur Kristallographie, 1983)
Powder X-ray diffraction (calculated) 2θ (degrees, Cu Kα1) I/I₀ (max 100) d (Å) 5.161 2.643 2.606 2.778 5.849 2.479 I/I₀ 100 59.9 53.6 50.3 33.2 33
xrd-v1: CuKa1 1.5406A, 2theta 5-90, top10, Imax=100, no DW/PO. Computed from COD 9008306; idealized occupancies, no preferred orientation.
Physical properties Density (calculated) 1.834 g/cm³calculated from COD 9008306 Streak whitesingle source Wikidata (CC0)
Chemistry (calculated) Molecular weight 208.18 g/molcalculated from the IMA formula Composition (wt%) Ca 19.25%, C 5.77%, O 69.17%, H 5.81%
Classification Nickel-Strunz (10th) 5.CB.25Wikidata (CC0) Nickel-Strunz (9th) 5.CB.25Wikidata (CC0) Dana (8th) 15.1.4.1Wikidata (CC0)
