LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Wurtzite crystal structure, molecular model. Wurtzite is the name for the mineral form of zinc sulphide (ZnS). The unit cell (repeating crystal region) of the crystal is outlined in red. Zinc ions are blue and sulphur ions are yellow. The crystal has a hexagonal crystal structure adopted by several other minerals, including important semiconductors such as gallium nitride.
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