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.
These ear plugs are made of self adjusting foam that provides a comfortable, low pressure fit and excellent sound filtration.
Box of 100 First Touch powder-free LARGE Nitrile exam gloves.
These goggles meet the American National Standards Institution (ANSI Z87.1) and Canadian Standards (CSA Z94.3) regulations.
Durable, anti-fog safety glasses that fit comfortably on any head size.
Great premium general purpose KingSeal Nitrile gloves in size SMALL. Not for medical use.
Save with this large package of 300 medium-size nitrile exam gloves!
A massive mounted set of 100 rocks and minerals found in the US,
This is a great clean heat demonstration model for the classroom setting!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
This project book and sample kit introduces you to shape-memory alloy technology!
A touch of joy. A touch of science. Light responds to your touch and to the music in your room!
At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.