National Geographic 2026 Gemstone Advent Calendar for Kids 8-12 with 24 Gems, Complete Rock Collection Christmas Countdown Calendar, STEM Activity

DISCOVER A UNIQUE GEMSTONE EACH DAY - Each day of December, kids will find a new gemstone to add to their collection! A collector's pouch is also included to keep all their specimens safe. SHINE & SHIMMER ON THE FINAL DAY - On Christmas Eve, kids will uncover a stunning rose quartz specimen, the crown jewel of their new rock collection! CREATE YOUR OWN JEWELLERY - This Christmas countdown calendar includes five jewellery settings kids can use to create their own wearable keepsakes all year long! START A ROCK COLLECTION WITH 24 GEMS - With gorgeous polished gemstones including agate, green aventurine, hematite, sodalite, turquenite, tiger's eye, blue calcite and more, kids can start their very own rock collection or add to an existing one! AWARD-WINNING PRODUCTS - Blue Marble, winner of the Toy Association's prestigious Toy of the Year Award, proudly develops products that foster education, imagination, and creativity, with a U.S. support team to ensure a stellar experience!