Mineral Factbook

Metavivianite

Fe2+Fe3+2(PO4)2(OH)2·6H2OIMA symbol: Mvivapproved

Metavivianite is a phosphate, arsenate, or vanadate mineral with the formula Fe2+Fe3+2(PO4)2(OH)2·6H2O. It has a calculated density of 2.579 g/cm3.

Photos

Metavivianite specimen photo
S. Rae from Scotland, UK · CC BY 2.0 · Commons

Crystallography

Space groupP -1
Cell (Å, °)a = 7.84, b = 9.11, c = 4.67; α = 95.04, β = 96.94, γ = 107.72
Cell volume312.6 ų, Z = 1
Axial ratios0.8606:1:0.5126calculated from COD 1001783
Source structureCOD 1001783 (Bulletin de Mineralogie, 1982) — 1 of 2 structures

Physical properties

Density (calculated)2.579 g/cm³calculated from COD 1001783

Classification

Nickel-Strunz (10th)8.DC.25Wikidata (CC0)
Nickel-Strunz (9th)8.CE.85Wikidata (CC0)