Samiksha Jaiswal (Editor)

Wurtzite

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Category
  
Sulfide mineral

Dana classification
  
02.08.07.01

Fracture
  
Uneven - irregular

Space group
  
P63mc

Optical properties
  
Uniaxial (+)

Strunz classification
  
2.CB.45

Cleavage
  
[1120] and [0001]

Formula (repeating unit)
  
(Zn,Fe)S

Crystal system
  
Hexagonal

Wurtzite WurtziteZincite

Color
  
Brownish black, Orange brown, Reddish brown, Black.

Crystal class
  
Dihexagonal pyramidal (6mm); H-M symbol: (6mm)

Crystal habit
  
Radial clusters and colloform crusts and masses. Also as tabular crystals

Other characteristics
  
Nonmagnetic, non-radioactive

Wurtzite zinc iron sulfide unit cell


Wurtzite is a zinc iron sulfide mineral ((Zn,Fe)S) a less frequently encountered mineral form of sphalerite. The iron content is variable up to eight percent. It is trimorphous with matraite and sphalerite.

Contents

It occurs in hydrothermal deposits associated with sphalerite, pyrite, chalcopyrite, barite and marcasite. It also occurs in low-temperature clay-ironstone concretions.

Wurtzite httpsuploadwikimediaorgwikipediacommonsthu

It was first described in 1861 for an occurrence in the San José Mine, Oruro City, Cercado Province, Oruro Department, Bolivia, and named for French chemist Charles-Adolphe Wurtz. It has widespread distribution. In Europe it is reported from Příbram, Czech Republic; Hesse, Germany; and Liskeard, Cornwall, England. In the US it is reported from Litchfield County, Connecticut; Butte, Silver Bow County, Montana; at Frisco, Beaver County, Utah; and from the Joplin district, Jasper County, Missouri.

Wurtzite Zinc Blende and Wurtzite

Wurtzite structure

The wurtzite group includes: Cadmoselite CdSe, Greenockite CdS, Mátraite ZnS and Rambergite MnS, in addition to wurtzite.

Wurtzite Wurtzite crystal structure Wikipedia

Its crystal structure is called the wurtzite crystal structure, to which it lends its name. This structure is a member of the hexagonal crystal system and consists of tetrahedrally coordinated zinc and sulfur atoms that are stacked in an ABABABABAB pattern.

The unit cell parameters of wurtzite are (-2H polytype):

Wurtzite WurtziteZincite

  • a = b = 3.82 Å = 382 pm
  • c = 6.26 Å = 626 pm
  • V = 79.11 Å3
  • Z = 2

  • Wurtzite The Structure and Entropy of Ice PHY313

    References

    Wurtzite Wikipedia


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