Agate
Agate is a form of chalcedony and is easily recognizable by its concentric bands of colour which can come in shades ranging from white, yellow, pale blue, grey, pink, red, brown or black. Agates are found in cavities of ancient lava or other extrusive igneous rocks. Agate has been worked since prehistoric times for carving and jewellery, as a protection and good luck amulet.
Agate encourages a calm state of mind, and gives us protection and security. It provides us with a good resistance against unwanted external influences whilst soothing any internal tensions. It can give us a boost of self confidence and aids us in overcoming negativity.