Chrysoprase Tumbled Stones Set of six bright green tumbled stones of beautiful Chrysoprase Chrysoprase is a gemstone variety of chalcedony (a crypto crystalline form of silica) that contains small quantities of nickel. Its color is normally apple-green, like these specimens. In the Australian deposits, chrysoprase occurs as veins and nodules with brown goethite and other iron oxides. You will receive a similar set photographed, photo is typical. Chrysoprase is a talisman of growth and development. It is a natural birthstone of those born between May 21 and Jun 20. It is is a primary meditation aid when resolving affairs of the heart. Small (.25 - .5 inches)