Cryptomelane

Facts

Chemical formula

K(Mn⁴⁺₇Mn³⁺)O₁₆

Crystal system

Monoclinic

Elements in formula

Potassium, Manganese, Oxygen

Number of elements

3

IMA status

Approved

Type locality

Tombstone

Named after

black

Sources: Wikidata (CC0), IMA list of minerals via Wikidata · Wikidata Q3559150