True to the beautiful shades of Valentine's day pink it comes in, pink opal is known as the stone of love to faithful lovers. These milky stones are said to promote joy and compassion with their soothing colors and smooth textures. Opal is formed from an ancient combination of silica and water, creating this soft stone millions of years ago just to come to bring a little more love into your collection or project. Pink opal is considered an astrological birthstone of Libra. Pink opal is found in Peru.