Opal - the birthstone for October. The Opal, Eve of the Gods, is a stone of hopes, love and romance and a stone to grant wishes and personal happiness positive actions and achievements. It is a mysterious gem, as each one appears different in its delicate beauty. It has always been one of the most popular and esteemed gems, known to absorb, carry and pass enormous amounts of energy. The Opal is not a particularly hard stone, so care must be taken to preserve the natural beauty of this gem. Beautiful Opals have featured in many of the Crown Jewels of Europe and they remain popular with heads of state and the rich and famous. Opal is found in Western USA, Mexico, Australia, North, Central and South America and Indonesia. The Opal is the birthstone for the zodiac sign of Libra.