# vivianite

> English word · Noun

## Definitions
1. A blue, green or colourless mineral of monoclinic crystals, Fe₃(PO₄)₂·8H₂O.

## Etymology
Named after its discoverer English mineralogist Jeffrey G. Vivian in 1817.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/vivianite