Black Onyx is a banded agate, a relatively rare gemstone cut only from the darkest bands of the stone. In nature it is rare to find solid black agate and the best quality material is usually heat and pressure treated in Germany to make it a more solid black colour. A variety of quartz, belonging to the Chalcedony family of stones. All types of Agate are composed of SiO2 They form according to a trigonal crystal structure, and have a hardness of 7 on the Mohs scale.
Pendulums can be used to answer any yes/no question. First establish your yes/no by asking the pendulum to show you a yes, and then show you a no. For some people it will swing clockwise and anti-clockwise, whilst for others it will swing back and forth. It is also possible to have one straight and one circular response but ideally which ever is your yes/no your pendulum should be responsive and clear. If the answer isn’t clear it will hover.
Pendulums can also be used over a map to divine for resources such as gold or water. You can draw up a noughts and crosses grid and list different options in the squares, your pendulum will move towards the different options to give you a more detailed answer. Lastly, they can be used for clearing the chakras (energy centres) in the body, holding the pendulum over each chakra at a time it will move in a clockwise direction to clear the chakra and then in an anti-clockwise direction to balance the chakra. When it stops for the second time you can move on to the next chakra, working you way through all seven energy centres.