/usr/lib/x86_64-linux-gnu/libcrystalhd.so is in libcrystalhd-dev 1:0.0~git20110715.fdd2f19-11.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libcrystalhd.so.3.6
/usr/lib/x86_64-linux-gnu/libcrystalhd.so.3.6