Prove scientifically that all that glitters is not gold Mold
your own geode and create a beautiful crystal cavern inside –
this is just one of 15 experiments composed of four chemically
different crystals: potassium alum crystals create regular
octahedrons; rapidly growing sodium sulfate crystals; long
needle-shaped sodium acetate crystals; and plaster made from
gypsum crystals. Create plaster casts of shapes and then grow
layers of crystals on them. Mix the dyes (included) and custom
color your creations – then display them in the included clear
plastic treasure chest. Includes 15 experiments, locking
treasure chest and instructions. Recommended for ages 12+.
WARNING! — This set contains chemicals and parts that may be
harmful if misused. Read cautions on individual containers and
in manual carefully. Not to be used by children except under
adult supervision.