Quartz crystal with pale lavender to deep purple colors is called amethyst. The colors are caused by traces of iron in the quartz and will be lost if heated. Amethyst is used mainly for decoration. The deep purple specimens are valued as gemstones. Great for science projects or classroom collection.
Note: Please be aware that this is a natural mineral and as such each piece is one of a kind! The one you receive may not be exactly the same as the ones pictured but it will be similar. Price is per each piece. They come in irregular shapes, sizes and weights.
This simple but amusing magnetic toy will keep you busy for hours!
Build a model green house and 9 other green energy-related devices with this great kit!
Great microscope for viewing both slides and 3D objects such as flowers, bugs, rocks and more. Includes all accessories!
Use this cool Sea Monkeys zooquarium to teach your child how to take care of a pet!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
Build your very own smart robot!
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