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 adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
This classic desk toy will keep you amused!
Build a robot that's an artist too!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
Get this great introductory chemistry kit for your favorite young scientist!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
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