Ultimate Specimen Collection--- Unique Crystal Advent Calendar 2022 is a perfect independent collection or add to any childs specimen collection, including 24 rough and polished ore samples. Be a great gift for boys and girls. DIY Necklace With Your Kids---Include an amethyst Necklace,The Ancient Egyptians worked amethysts into amulets as both a form of prayer and protection against harm. It's said to wear an amethyst necklace could bring good luck and energy.for other crystals,many people use them as Meditation,Yoga,Healing Specific Chakras and other uses. Finding Crystal Treasures---Advent calendar are also a great way to teach children numbers, time concepts, and the art of patience.Unlock unique mineral deposits or beautiful crystals and explore the field of geology science.It is colorful and interesting enough for kids, their families and hobbyists Interesting Christmas Calendar---advent calendars of 24 rock specimens with 24 openings (may include the same stones or stones that are not shown in the picture), with different surprises every day, forming a lasting attraction for children. The Perfect Gift---Both children and adults like thhis crystal advent calendar gift. Note: Not edible. Please do not put it in your mouth, children under 3 years old are not suitable for use