Chillipepperstone 12 Semiprecious Gemstone Box Collection Stones Rock, Natural Polished, 1/2 to 3/4 Inch A beautiful collection of polished gemstones is a must for the beginner or seasoned gemstone collector. Natural polished stone, size between 1/3 to 1/2 inch (diagonal) Great for kids (Age 3+), gifts, stone collectors, geology studies, desktop decoration Must have for the beginner or seasoned gemstone collector. Green Aventurine, Rose Quartz, Unakite, Red Aventurine, Topaz, Red Jasper, Sodalite, Amethyst, Blue Agate, Tiger Eyes, Limon Jade, Camelian