Black Tourmaline Tumble Stone from The Crystal Shop, St Andrews.
 
Black Tourmaline
Powerful Protection
Root Chakra
Capricorn · Libra
 
Holistic Healing:
Traditionally associated with protection, grounding and emotional stability. In crystal lore it is also linked to protection from negativity and electronics, to the legs and feet, and to keeping a calm, grounded mood.
 
Metaphysical Traditions:
Regarded in tradition as the classic protective stone, placed by doorways and carried for shielding.
 
Cool Facts:
Black tourmaline (schorl) is pyroelectric: heat it and it develops an electric charge at each end, which is how it got the name "ash-puller" from Dutch traders.
Tourmaline's name comes from the Sinhalese turmali, "mixed-coloured stones".
It grows as long striated prisms, and the striations run the length of the crystal.