Create 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. Display your beautiful specimen day and night! Learn about how crystals form and why the pigment glows under ultraviolet light.
Piece Count: 7
Manual Pages: 16
Product Dimensions: 8.75 x 11 x 2.5 in.
Product Weight: 1.5 lbs
Manual Dimensions: 5.5 x 8.25 in.
Batteries Required: AAA (1)
Country of Origin: Germany
Year Released: 2016
5-PS1-4 Structure and Properties of Matter