2 inches long. Size and shape will vary.
It is also known as schorl. Extremely helpful for protecting and grounding personal energy.
As a grounding stone, black tourmaline can be used whenever energies are scattered and confused.
This stone gives strong protection against negativity of all sorts.
Deflects negativity back into the earth, rather than absorbing the energy into itself, where it would accumulate and interfere with its efficiency.