Onyx is a Chalcedony, which is a variety of microcrystalline Quartz. It is formed when silica is deposited in lava gas cavities. This usually results in the unique bands or stripes that Onyx stones usually exhibit. It is recognized for its gorgeous black or brown coloring and magnificent striped bands. But not all onyx stones are black. They come in vibrant colors weaved with magnificent bands in a variety of natural colors. Please be aware though, that most colored Onyx being sold on the market is enhanced in some way, either Dyed, Heat Treated, or Both, & this includes most solid Black Onyx as well. Black is the most popular onyx color, and the color of power, mystery, and depth. Its neutral tone means it matches everything. It's a powerful companion for any color and any person. While solid black onyx is undoubtedly what most people first think of, other onyx color varieties exist. These are much more abundant than the natural solid black form which is quite rare these days. Onyx is known as the “Stone for the Mind” because of the mental aspect of its spiritual properties. Onyx symbolizes mental strength, mindfulness, and self-control. The healing properties of Onyx can assist you in overcoming feelings of grief, sorrow, or depression. It can provide you with emotional healing as well as sentiments of hope and optimism. When placed near your bed, it is said that the soothing energies of Black Onyx will provide you with a deep and comfortable slumber all night. Presently, Onyx has significant meaning across the world. It is believed that the stone protects its bearer from nightmares and other unwanted occurrences at night. Onyx is also thought to be helpful in overcoming addictions or unhealthy habits. Onyx is believed to be a stone of protection and strength. It is said to help its user stay grounded and focused, and to provide support in challenging times. Natural Colored Onyx is found in black and varied shades of green, red, orange, brown, blue, and white.