Key facts
- Mineral.name
- Gahnite
- Mineral.category
- Oxide minerals Spinel group Spinel structural group
- Mineral.image
- Gahnite.jpg
- Mineral.imagesize
- 260px
- Mineral.formula
- ZnAl2O4
- Mineral.IMAsymbol
- Ghn
- Mineral.strunz
- 4.BB.05
- Mineral.system
- Cubic
- Mineral.class
- Hexoctahedral (mm) H-M symbol: (4/m 2/m)
- Mineral.symmetry
- Fdm
- Mineral.color
- Dark green, bluish green, blue to indigo, yellow to brown
- Mineral.habit
- Typically octahedra, rarely as dodecahedra also massive to granular
- Mineral.twinning
- Common on [111] produces striations
- Mineral.cleavage
- Indistinct parting on [111]
- Mineral.fracture
- Conchoidal, uneven
- Mineral.mohs
- 7.5–8.0
- Mineral.luster
- Vitreous
- Mineral.refractive
- n = 1.79–1.80
via Wikipedia infobox
Wikidata facts
- Subclass of
- oxyspinel group
- Named after
- Johan Gottlieb Gahn
- Image
- Gahnite-Spinel-3d33c.jpg
Show 8 more facts
- Strunz 8th edition (series ID, updated)
- IV/B.01a
- Nickel-Strunz 9th edition (updated 2009)
- 4.BB.05
- chemical formula
- ZnAl₂O₄
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 4.BB.05
- Commons category
- Gahnite
- crystal system
- cubic crystal system
- streak color
- grey
- IMA Mineral Symbol
- Ghn
Sources (1)
via Wikidata · CC0
Article · Italiano
La gahnite è un minerale, prende il suo nome dal chimico svedese Johan Gottlieb Gahn (scopritore del manganese nel 1774).
Abstract from DBpedia / Wikipedia · CC BY-SA