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My 8-year-old carefully chipped away at the brick for nearly an hour. The included hammer and chisel are sturdy enough for repeated use, and finding each hidden geode felt like a real excavation.

The kids were absolutely glued to this for a whole afternoon—chipping away at the brick to uncover the gems felt like a real treasure hunt. The included mold for making your own mineral replica is a nice bonus, and the stones looked genuinely cool once we washed them off.

I was pleasantly surprised by how dense and realistic the excavation block felt, and the included mold is a neat bonus for shaping your own geode after you've dug through it. My kids spent a solid hour chipping away and genuinely got excited each time a new crystal emerged.