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 goggles meet the American National Standards Institution (ANSI Z87.1) and Canadian Standards (CSA Z94.3) regulations.
Extra-small nitrile exam gloves designed and manufactured for superior protection against viral, bacterial, and certain chemical hazards.
Durable, anti-fog safety glasses that fit comfortably on any head size.
Recommended for protection against chemical splashes. A must have for every young chemist!
These goggles meet the ANSI Z87.1, 2010 High Impact standards.
These ear plugs are made of self adjusting foam that provides a comfortable, low pressure fit and excellent sound filtration.
Use this awesome prism to teach about optics and light in the classroom setting!
Build an electromagnet, an electrical catapult, a doorbell chime, a telegraph, and more with this kit!
This microscope is so versatile you can even take it with you on a job site!
Shake the Pet Tornado clockwise and watch the mini tornado funnel form before your eyes!
This quality Dobsonian style telescope features a 76 mm aperture reflector optical tube.
Build over 100 exciting electronic projects with this easy to use kit!
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.