Sandstone is a sedimentary rock formed by the action of wind, water and ice on older rock. It is composed of sand-like crystals of quartz cemented together by silica, lime or iron oxide. Formed in or near ancient seas, sandstone may contain fossilized sea animals. It can be cut into blocks and used for building construction.
Great for science projects or classroom collection.
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.
Durable, anti-fog safety glasses that fit comfortably on any head size.
Highly durable lab apron made of rubberized cloth is impermeable and easy to clean, perfect for all manner of lab or classroom experiments
Recommended for protection against chemical splashes. A must have for every young chemist!
Extra thick medical examination gloves - 60mil. Great for extra protection.
These goggles meet the ANSI Z87.1, 2010 High Impact standards.
These goggles meet the American National Standards Institution (ANSI Z87.1) and Canadian Standards (CSA Z94.3) regulations.
Every kid needs one of these spheres!
Learn about hydrogen fuel cells with this incredible kit!
Discover a world of kaleidoscopic effects within this perfectly clear prism of the Light Crystal!
Experience this sphere powered by the sun!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
Check out this high-quality gyroscope!
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.