All pendulums vary in size and color.
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.
Citrine is used for drawing joy, wealth and abundance. Because it is tenaciously positive, it can be used to cleanse other stones. Citrine is also said to work best for those who are generous with their good fortune.