Smithsonian Crystal Growing Set

Grow your own collection of crystals in these sparkling colors: "Golden Citrine", "Pink Quartz", "Frosty Diamond", "Purple Amethyst Geode", "Aquamarine Blue", "White Calcite", "Emerald Green", and "Clear Diamond". Safe and easy to do. Crystals start to grow within a few hours and may be finished within a week.