هوسمانیت
Sign in to saveHausmannite is a complex oxide, or a mixed oxide, of manganese containing both di- and tri-valent manganese. Its chemical formula can be represented as , or more simply noted as , or , as commonly done for magnetite (), the corresponding iron oxide. It belongs to the spinel group and forms tetragonal crystals. Hausmannite is a brown to black metallic mineral with Mohs hardness of 5.5 and a specific gravity of 4.8.
Key facts
- Mineral.name
- Hausmannite
- Mineral.category
- Oxide mineral
- Mineral.image
- Hausmannite-215565.jpg
- Mineral.imagesize
- 260px
- Mineral.formula
- {{chem2|Mn^{II}Mn^{III}2O4}},, or
- Mineral.IMAsymbol
- Hsm
- Mineral.molweight
- 228.81 g/mol
- Mineral.strunz
- 4.BB.10
- Mineral.system
- Tetragonal
- Mineral.class
- Ditetragonal dipyramidal (4/mmm) H-M symbol: (4/m 2/m 2/m)
- Mineral.symmetry
- I41/amd
- Mineral.unit cell
- a = 5.76 Å c = 9.46 Å; Z = 4
- Mineral.color
- Brownish black, grayish.
- Mineral.habit
- Massive – granular – common texture observed in granite and other igneous rock. pseudo octahedral – crystals show an octahedral outline.
- Mineral.twinning
- Repeated twins on {112}
- Mineral.cleavage
- [001] Perfect
- Mineral.fracture
- Uneven – flat surfaces (not cleavage) fractured in an uneven pattern.
- Mineral.tenacity
- Brittle
via Wikipedia infobox
Wikidata facts
- Subclass of
- oxyspinel group
- Has part
- manganese(II,III) oxide
- Named after
- Johann Friedrich Ludwig Hausmann
- Image
- Hausmannite-120647.jpg
Show 8 more facts
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 4.BB.10
- Commons category
- Hausmannite
- chemical formula
- Mn²⁺Mn³⁺₂O₄
- Nickel-Strunz 9th edition (updated 2009)
- 4.BB.10
- crystal system
- tetragonal crystal system
- described by source
- Brockhaus and Efron Encyclopedic Dictionary
- IMA Mineral Symbol
- Hsm
- Strunz 8th edition (series ID, updated)
- IV/B.02
Sources (1)
via Wikidata · CC0