Item talk:Q162740
From geokb
Mindat Short Description
Vivianite Group
Usually found as deep blue to deep bluish green prismatic to flattened crystals, most crystals rather small to microscopic, larger ones rather rare.
When fresh the mineral may be colourless, or nearly so, and, once exposed, will ...
Geoscience Ontology Status Notes
Werner A G (1817) Vivianit, in Letztes Mineral-System, bey Craz und Gerlach, und bey Carl Gerold (Freiberg und Wien) 41-42
IMA Formula (from Mindat)
Fe2+3(PO4)2 · 8H2O
RRUFF Formula (from Geoscience Ontology)
Fe2+3(PO4)2·8H2O
