\Chi*as"to*lite\ (k[-i]*[a^]s"t[-o]*l[imac]t), n.
[Gr. chiasto`s marked with a [chi] + -lite. See {Chiasm}. So
called from the resemblance of the cross cuts of its crystals
to the Greek letter [chi].] (Min.)
A variety of andalusite; -- called also {macle}. The
tessellated appearance of a cross section is due to the
symmetrical arrangement of impurities in the crystal.