- (of a crystal) having only half the planes or faces required by the maximum symmetry of the system to which it belongs.
Origin of hemihedral
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Examples from the Web for hemihedral
The occurrence of hemihedral faces was considered by Pasteur to be a sufficient criterion for an optically active substance.The Phase Rule and Its Applications
These systems, however, only represented holohedral forms, leaving the hemihedral and tetartohedral classes to be explained.
In this species the hemihedral variety, Hemiaspis, often occurs.
In this way a mixture of the two asparagines was obtained, which were separated by picking out the hemihedral crystals.
It may be considered as the hemihedral form of the ditetragonal bipyramid.
- (of a crystal) exhibiting only half the number of planes necessary for complete symmetry