File:Pyrolusite_-_USGS_ID_Stose,_GW_1425.jpg · Wikimedia Commons · See Wikimedia Commons
Piroluzyt
Sign in to savePyrolusite 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. thumb|Acicular radiating pyrolusite
In the Vinony graph
Within Vinony's link graph, Piroluzyt is referenced by 147 other articles, and connects out to tantalite, Neanderthal and columbite.
It sits within the topics Manganese(IV) minerals, Minerals in space group 136 and Oxide minerals.
Its subject is documented across 44 Wikipedia language editions.
Key facts
- Mineral.name
- Pyrolusite
- Mineral.category
- Oxide minerals
- Mineral.image
- Pyrolusite - USGS ID Stose, GW 1425.jpg
- Mineral.formula
- MnO2
- Mineral.IMAsymbol
- Pyl
- Mineral.strunz
- 4.DB.05
- Mineral.system
- Tetragonal
- Mineral.class
- Ditetragonal dipyramidal (4/mmm) H-M symbol: (4/m 2/m 2/m)
- Mineral.symmetry
- P42/mnm
- Mineral.color
- Darkish, black to lighter grey, sometimes bluish
- Mineral.habit
- Granular to massive: botryoidal. Crystals rare
- Mineral.twinning
- {031}, {032} may be polysynthetic
- Mineral.cleavage
- Perfect on {110}
- Mineral.fracture
- Irregular/Uneven
- Mineral.tenacity
- Brittle
- Mineral.mohs
- 6–6.5, 2 when massive
- Mineral.luster
- Metallic, dull to earthy
- Mineral.refractive
- Opaque
via Wikipedia infobox
Wikidata facts
- Named after
- washing
- Image
- Pyrolusite botryoidal.jpg
Show 8 more facts
- Commons category
- Pyrolusite
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 4.DB.05
- chemical formula
- MnO₂
- Nickel-Strunz 9th edition (updated 2009)
- 4.DB.05
- crystal system
- tetragonal crystal system
- contains
- manganese dioxide
- IMA Mineral Symbol
- Pyl
- Strunz 8th edition (series ID, updated)
- IV/D.03a
Sources (2)
via Wikidata · CC0
Article · Polski
Piroluzyt – minerał z gromady tlenków. Należy do minerałów pospolitych i często spotykanych. Nazwa pochodzi od gr. pyr = ogień i liosis = rozproszenie, rozkład (oysis = myć).
Abstract from DBpedia / Wikipedia · CC BY-SA