Shop online Agate stone beads in 4mm , 6mm, 8mm, 10mm, 12mm in different - different color shades. Texture Color, Shaded Color, Double color, Transparent colors, Opaque colors. This beads using in Imitation jewelleries, B. racelate, Healing bracelate Agates enhance mental function as they improve concentration. perception and analytical abilities, leading to practical solutions. Traditionally, agate has been used to overcome physical, emotional and mental poisoning or toxicity and is a useful receptacle for negative energy.