Glossary:Vivianite

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[edit] Vivianite

An iron phosphate mineral Fe₃(PO₄)₂.8H₂O sometimes seen on bone that crystallises in reduced, biologically rich environments. It has white needle like crystals that oxidise rapidly on exposure to air, turning into a strickingly blue powder.

[edit] Source

Adapted from: English Heritage (2004) Geoarchaeology: Using earth sciences to understand the archaeological record. UK: English Heritage Publishing.