romanèchite
Sign in to saveAlso known as psilomelane, romanechite
thumb|Polyhedral representation of the 2 x 3 tunnel structure of romanèchite. The red atoms represent Ba and H2O.
Key facts
- Mineral.mohs
- 6–6.5
- Mineral.name
- Romanèchite
- Mineral.image
- Romanechite.jpg
- Mineral.imagesize
- 260px
- Mineral.caption
- Romanèchite, from the Marquette County, Michigan, US.
- Mineral.category
- Oxide minerals
- Mineral.IMAsymbol
- Rmn
- Mineral.strunz
- 4.DK.10
- Mineral.system
- Monoclinic
- Mineral.class
- Prismatic (2/m) (same H-M symbol)
- Mineral.symmetry
- C2/m
- Mineral.luster
- Submetallic
- Mineral.streak
- Blue-black
via Wikipedia infobox
Wikidata facts
- Image
- Romanechite.jpg
Show 5 more facts
- Nickel-Strunz 9th edition (updated 2009)
- 4.DK.10
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 4.DK.10
- Commons category
- Romanèchite
- IMA Mineral Symbol
- Rmn
- chemical formula
- (Ba,H₂O)₂(Mn⁴⁺,Mn³⁺)₅O₁₀
Sources (2)
via Wikidata · CC0
~1 min read
Article
1 sectionsContents
- References
thumb|Polyhedral representation of the 2 x 3 tunnel structure of romanèchite. The red atoms represent Ba and H2O.
Romanèchite () is the primary constituent of psilomelane, which is a mixture of minerals. Most psilomelane is not pure romanechite, so it is incorrect to consider them synonyms. Romanèchite is a valuable ore of manganese, which is used in steelmaking and sodium battery production. It has a monoclinic crystal structure, a hardness of 6 and a specific gravity of 4.7–5. Romanèchite's structure consists of 2 × 3 tunnels formed by MnO6 octahedra.