biaxial crystal

biaxial crystal

[bī′ak·sē·əl ′krist·əl]
(crystallography)
A crystal of low symmetry in which the index ellipsoid has three unequal axes.
References in periodicals archive ?
Exact 2 x 2 matrix method for the transmission and reflection at the interface between two arbitrarily oriented biaxial crystals," Journal of Optics A: Pure and Applied Optics, Vol.