hemihedral
/ˌhɛmiˈhiːdrəl/
adjective
- Describing a crystal that has only half the number of faces that a fully symmetrical crystal of its type would have.
- The hemihedral structure of the quartz made it look asymmetrical compared to typical specimens.
- The mineral sample showed hemihedral crystals with fewer faces than usual.
- In the geology lab, students examined hemihedral forms under a microscope.