The Magic Rocks are chunks of metal salts that have been stabilized by being dispersed in aluminum hydroxide or alum. The magic solution is a solution of sodium silicate (Na2SiO3) in water. The metal salts react with the sodium silicate to form the characteristic colored precipitant. (Source: https://www.thoughtco.com/make-your-own-magic-rocks-607653)
The Jurassic Park Magic Rocks set comes with an aquarium, “magic rocks” & solution and a Brachiosaurus figure.
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