Vernadite

Facts

Chemical formula

(Mn₄+,Fe³⁺,Ca,Na)(O,OH)₂ * nH₂O

Crystal system

Hexagonal

Elements in formula

Manganese, Iron, Calcium, Sodium, Oxygen, Hydrogen

Number of elements

6

IMA status

Questionable

Named after

Vladimir Vernadsky

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q4010101