Malas are traditionally used to aid in meditation.  These have the traditional 108 beads on them and the belief is to repeat your mantra/prayer/chant as you touch each bead to reach a deep sense of peace and calm. 
Opalite improves communication on all levels especially the spiritual.  It can remove energy blockages from the chakras and meridians, and assists during transitions of all kinds.  It engenders persistence and gives strength in verbalizing hidden feelings.  See the About section for how this beautiful stone is made. 
Chakras:  All