Kalpana Kalpana (Editor)

Zunyite

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Category
  
Sorosilicates

Strunz classification
  
9.BJ.55

Space group
  
F43m

Formula (repeating unit)
  
Al13Si5O20(OH,F)18Cl

Crystal system
  
Isometric

Zunyite

Crystal class
  
Hextetrahedral (43m) H-M symbol: (43m)

Zunyite is a sorosilicate mineral, Al13Si5O20(OH,F)18Cl, composed of aluminium, silicon, hydrogen, chlorine, oxygen, and fluorine.

Occurrence

Zunyite occurs in highly aluminous shales and hydrothermally altered volcanic rocks. It occurs in association with pyrophyllite, kaolinite, alunite, diaspore, rutile, pyrite, hematite and quartz.

It was discovered in 1884, and named for its discovery site, the Zuni mine in the Silverton District, San Juan County, Colorado.

References

Zunyite Wikipedia