Blue Marble

National Geographic Birthstone Dig Kit – Science Kit with 12 Genuine Birthstones, Includes a Real Diamond, Ruby, Sapphire, Pearl, & More, Gemstones and Crystals, Rock Collection (Amazon Exclusive) AUTHENTIC BIRTHSTONE SPECIMENS – This dig kit is truly special! Inside the beautifully designed dig brick are 12 precious and semi-precious gemstones. Your kids will love digging and discovering these dazzling specimens! A SPECIAL GEMSTONE FOR EVERYONE – Every kid will find their own special birthstone in this gemstone dig kit! Garnet, diamond, ruby, pearl, sapphire, amethyst, emerald, opal, blue topaz, citrine, aquamarine, and peridot are all hidden within. A COMPLETE SCIENCE...