All pendulums vary in size and color and are ethically sourced.
Pendulum divination is a very simple form of divination that relies heavily on yes/no answers to questions about things that are and things that may come to pass. A pendulum of some sort is tied to a string or chain and held in one hand. As the question is asked, the answer comes in the form of the pendulum swinging north/south, east/west, or in circles of some sort. Mats or predeterminded directions are used for the yes/no validation.
Black Tourmaline is a talismanic stone said to protect the user from demons and negative energies while performing magickal work. It is also worn to help minimize the wearer’s own negative thoughts and doubts and encourage positive action as well as a general protectant against miasma and environmental pollutants.
It is also useful for spells involving self-confidence, personal power, rational thinking and decision making, promoting a clear view of reality (through illusion and deception) and for spells related to revealing the cause of trouble, or the person at the root of it. Black tourmaline makes a wonderful scrying stone.