Image: Wikimedia Commons

pyrolusite

Manganese dioxide mineral

Instance of: mineral species
1
Sources
1.Stated in The IMA List of Minerals (November 2018)
View statement on Wikidata ↗
Subclass of: rutile mineral group
1
Sources
1.Stated in Fleischer’s Glossary of Mineral Species 2014
View statement on Wikidata ↗

Overview

From Wikipedia, the free encyclopedia · Read full article · Text CC BY-SA 4.0

Pyrolusite is a mineral consisting essentially of manganese dioxide (MnO2) and is important as an ore of manganese. It is a black, amorphous appearing mineral, often with a granular, fibrous, or columnar structure, sometimes forming reniform crusts. It has a metallic luster, a black or bluish-black streak, and readily soils the fingers. The specific gravity is about 4.8. Its name is from the Greek for fire and to wash, in reference to its use as a way to remove tints from glass.

Overview

All data

38 statements · 42% with external sources · numbers in brackets are citations

Nickel-Strunz '10th ed', review of (9th ed/ 2009 update): 4.DB.05
IMA status and/or rank: approved mineral and/or valid name (A)
1
Sources
1.Stated in The IMA List of Minerals (May 2022)
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Named after: fire language: Ancient Greek · object named as: πῦρ "pyr"
1
Sources
1.Stated in A Dictionary of the Names of Minerals
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washing language: Ancient Greek · object named as: λούω "lou"
1
Sources
1.Stated in A Dictionary of the Names of Minerals
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Formula: MnO₂
Nickel-Strunz 9th edition (updated 2009): 4.DB.05
1
Sources
1.Stated in mineralienatlas.de
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Space group: space group P4₂/mnm
1
Sources
1.Stated in mineralienatlas.de
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Crystal system: tetragonal crystal system
1
Sources
1.Stated in mineralienatlas.de
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Contains: manganese dioxide
IMA Mineral Symbol: Pyl
1
Sources
1.Stated in IMA–CNMNC approved mineral symbols
View statement on Wikidata ↗
Strunz 8th edition (series ID, updated): IV/D.03a
1
Sources
1.Stated in Mineralogische Tabellen : Eine Klassifizierung der Mineralien auf kristallchemischer Grundlage, mit einer Einfuhrung in die Kristallchemie (1982)
View statement on Wikidata ↗
Point group: ditetragonal-dipyramidal

On other databases

23 identifiers linking pyrolusite across the web's reference databases

Data quality

statements

42%

externally sourced

Source last edited August 23, 2026. AIDB refreshes this page daily.

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AIDB. (2026). pyrolusite (Q413293). Retrieved from https://aidb.si/e/pyrolusite-Q413293