Onyx is found in Brazil, India, California, and Uruguay.
On the Mohs scale of hardness, it is a 6.5.
Onyx is chalcedony quartz and naturally occurs in bands of black and white, but is dyed to achieve the jet black stones that we use.
Onyx is thought to increase happiness, intuition, instincts, decrease sexual desire & help change bad habits.
Clean in an ultrasonic or by scrubbing with a designated soft “baby” toothbrush and
mild dish soap (not lemon scented) and warm water.