zemannite
Sign in to saveAlso known as IMA1968-009
Zemannite is a very rare oxide mineral with the chemical formula Mg0.5ZnFe3+[TeO3]3·4.5H2O. It crystallizes in the hexagonal crystal system and forms small prismatic brown crystals. Because of the rarity and small crystal size, zemannite has no applications and serves as a collector's item.
Key facts
- Mineral.name
- Zemannite
- Mineral.category
- Oxide mineral
- Mineral.image
- Zemannite-77637.jpg
- Mineral.imagesize
- 260px
- Mineral.IMAsymbol
- Zem
- Mineral.molweight
- 741.25 g/mol
- Mineral.strunz
- 4.JM.05
- Mineral.color
- Brown
- Mineral.habit
- Hexagonal, prismatic
- Mineral.system
- Hexagonal
- Mineral.class
- Dipyramidal (6/m) H-M symbol: (6/m)
- Mineral.symmetry
- P63/m
- Mineral.cleavage
- None
- Mineral.luster
- Vitreous – adamantine
- Mineral.refractive
- nω = 1.85; nε = 1.93
- Mineral.opticalprop
- Uniaxial
- Mineral.birefringence
- δ = 0.08
- Mineral.streak
- White
via Wikipedia infobox
Wikidata facts
- Image
- Zemannite-77637.jpg
Show 8 more facts
- Commons category
- Zemannite
- Nickel-Strunz 9th edition (updated 2009)
- 4.JM.05
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 4.JM.05
- crystal system
- hexagonal crystal system
- streak color
- white
- IMA Mineral Symbol
- Zem
- chemical formula
- Mg₀.₅ZnFe³⁺(Te⁴⁺O₃)₃·4.5H₂O
- Strunz 8th edition (series ID, updated)
- IV/G.02e
Sources (1)
via Wikidata · CC0
~4 min read
Encyclopedic overview
6 sectionsContents
- History and etymology
- Related minerals
- Morphology and structure
- References
- Further reading
- External links
Zemannite is a very rare oxide mineral with the chemical formula Mg0.5ZnFe3+[TeO3]3·4.5H2O. It crystallizes in the hexagonal crystal system and forms small prismatic brown crystals. Because of the rarity and small crystal size, zemannite has no applications and serves as a collector's item.
==History and etymology== Zemannite was discovered in 1961 in a tellurium deposit near Moctezuma, Sonora, Mexico as an unnamed new mineral. It was not accepted then by the International Mineralogical Association (IMA) due to the uncertainty in its chemical composition.
Excerpted from Wikipedia’s “zemannite” article, available under the CC BY-SA 4.0 licence.