Quartz crystal with pieces of black tourmaline in it.
A combination of clear quartz; the master healer and amplifies the energy of other crystals and tourmaline; protection against psychic attack, strengthens the bodies energy field against external invasion.
Tumbled stones are polished pieces of crystal that were originally a rough piece of crystal stone that has been placed in a rock tumbler which tumbles the crystal until the edges and surface are smooth and polished.
Each piece will be slightly different to the photo. Some pieces will have more tourmaline and others will have more quartz.
Measurements: approx. 2 cm