Crystal Advent Calendar 2024 Christmas Countdown Calendar For Kids Adults Advent Calendar Gifts Basket Gifts Box Unique Gem Stone Advent Calendar Kids Gifts Easter Day Gifts Birthday Gifts Cool Advent Calendars Christmas Advent Calendar 2024 Celebrate the season with science! Each day of December as Christmas approaches, kids will open an exciting science experiment to conduct from our world-class science kits, or a gemstone or fossil to add to their collection! Rock Collection & Christmas Decoration The present recipient will open each panel over the course of 24 days to uncover a unique rock, mineral, fossil, or gemstone! Rock, Crystal, and Agate Stone as a Gift for All Collectors Who Love the Natural. This gem advent calendar kit is fantastic for kids and adults wanting to start a rock collection or expand on an existing collection. Great birthday/holidays/Christmas gifts for boys girls toddlers kids daughters women moms teens friends. A