zaïrite
Sign in to saveAlso known as zairite, IMA1975-018
Zaïrite is a phosphate mineral with the chemical formula Bi(Fe3+,Al)3[(OH)6|(PO4)2]. The name was given from where it was locally discovered in Eta-Etu, Kivu, Congo (Zaïre) in 1975.
Wikidata facts
- Named after
- Democratic Republic of the Congo
- Image
- Zairite-520947.jpg
Show 6 more facts
- IMA Mineral Symbol
- Zaï
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 8.BL.13
- Nickel-Strunz 9th edition (updated 2009)
- 8.BL.13
- Commons category
- Zaïrite
- crystal system
- trigonal crystal system
- streak color
- white
via Wikidata · CC0
~1 min read
Encyclopedic overview
4 sectionsContents
- Properties
- Occurrence
- References
- External links
Zaïrite is a phosphate mineral with the chemical formula Bi(Fe3+,Al)3[(OH)6|(PO4)2]. The name was given from where it was locally discovered in Eta-Etu, Kivu, Congo (Zaïre) in 1975.
==Properties== Zaïrite crystallizes in the trigonal crystal system, which means it contains three equal horizontal axes with angles of 120° between them. The mineral has a trigonal-hexagonal scalenohedron shape. Zairite belongs to the uniaxial optical class. It means the light and vibrations passing through the mineral only has one direction it follows and it travels at the same speed.
Excerpted from Wikipedia’s “zaïrite” article, available under the CC BY-SA 4.0 licence.