Thames and Kosmos Glowing Crystal Geode J. K. Rowling Book UPC: 812095021460

UPC: 812095021460

Genre: RC Engineering

Experiments: 1

young researchers gain hands-on experience with the engineering design process and they learn about various topics in the fascinating world of mechanical physics and engineering

Get your PLAYMOBIL Ghostbusters Firehouse (9219) today

Thames and Kosmos Glowing Crystal Geode J. K. Rowling Book UPC: 812095021460Create 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.