Thames and Kosmos Glowing Crystal Geode J. K. Rowling Book Experiments: 1

Experiments: 1

DC Comics Mr

Between our hero�s resilient demeanor

UPC: 812095021460

and keep your child engaged for hours in a challenging and entertaining game

Thames and Kosmos Glowing Crystal Geode J. K. Rowling Book Experiments: 1Create your own crystal geode a round rock containing a crystal filled cavity. First, cast a plaster geode shell in the mold and then fill it with a crystal growing alum salt solution. The crystal solution contains an ultraviolet luminous pigment that gets incorporated into the crystals as they form, resulting in a geode that glows in ultraviolet light. An ultraviolet flashlight with holder, as well as a display stand for the geode, are included.