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Crafted from velvety soft fabric
Do you like collecting things and stashing them away
Four unique positions offer something for every stage
Reversible mechanical switches for railway for making right or left turns
you simply do your puzzle on the felt sheet
Thames & Kosmos - T550022 | Geek & Co. Science: Glowing Crystal Geode Science Kit Brand_Crayola Crafted from velvety soft fabricCreate your own crystal geode a round rock containing a crystal filled cavity. First, cast a plaster geode shell in the mould 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.
