Blue Tourmaline (Indicolite) with Quartz: rough piece

This small rough (and slightly crumbly) piece of white quartzite /feldspar and mica is crammed with randomly oriented crystals of blue / indigo Tourmaline (Indicolite). Although unpolished it has a strong energy, and would be interesting to use as a journeying or meditation stone.
Size 5 x 3.25 x 3.25 cm