Our opalite is heat-treated by heating it to high temperatures to enhance the stone's appearance. This can enhance the opalescent effect and cause changes in the translucence while simultaneously improving the durability of the stone and making it more resistant to scratches and damage. This isn't detrimental to its beauty or its function as a divination piece.
What do you do with a pendulum?
It's an ancient method of divining, or getting an answer to a question.