pyrolusite

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

pyrolusite (countable and uncountable, plural pyrolusites)

1. (mineralogy) A dark coloured mineral, consisting of manganese dioxide (MnO₂), that is an important ore of manganese.

• David Barthelmy (1997–2026), “Pyrolusite”, in Webmineral Mineralogy Database.
• “pyrolusite”, in Mindat.org, Keswick, Va.: Hudson Institute of Mineralogy, 2000–2026.

• pretiously

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pyrolusite f (plural pyrolusites)

1. (mineralogy) pyrolusite

• “pyrolusite”, in Trésor de la langue française informatisé [Digitized Treasury of the French Language], 2012