Pyrolusite

noun

noun ·Rare ·Advanced level

Definitions

Noun

1
A dark coloured mineral, consisting of manganese dioxide (MnO₂), that is an important ore of manganese. countable, uncountable
2
a mineral consisting of manganese dioxide; an important source of manganese wordnet

Synonyms

pseudomanganite

Etymology

From pyro- + Ancient Greek λοῦσις (loûsis) + -ite.

Related phrases

manganese dioxide

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.