Wurtzite is a zinc and iron sulfide mineral with the chemical formula , a less frequently encountered structural polymorph form of sphalerite. The iron content is variable up to eight percent. It is trimorphous with matraite and sphalerite.

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):

  • a = b = 3.81 Å = 381 pm
  • c = 6.23 Å = 623 pm
  • V = 78.41 Å<sup>3</sup>
  • Z = 2

See also

  • Wurtzite crystal structure

References

  • The Mineral Wurtzite

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