Carborundum is also known as Silicon carbide (SiC), a chemical compound that can only be found in nature in the form of the extradorinarily rare mineral known as moissanite, which is found only in trace amounts in certain meteorites, as well as corundum deposits and kimberlite. As such, practically all caborundum in the world is a man-made synthetic. It was originally used starting in 1893 as an abrasive, and later in car brakes, car clutches, and parts of bullet-proof vests. It also has electronic applications, as it is used in LEDs. Synthetic carborundum is also used in jewelry
This particular specimen is itself synthetic as well, bearing a purely decorative function, although it remains a stunning example of human ingenuity and the wonders of scientific innovation applied to geology. Each specimen is totally unique in shape and size (though the sizes are all similar), but all are covered in an incredible array of sparkling colors, primarily blues, greens, and purples of varying shade. It essentially appears to be an iridescent hunk of coal, really unlike any rock or mineral you’ve ever seen. Makes a great piece of decoration for any desk or room, and an interesting conversation-starter for the classroom.
Note: This specimen often has sharp edges - keep away from young children, and be careful not to cut yourself or splinter the mineral
Large nitrile exam gloves designed and manufactured for superior protection against viral, bacterial, and certain chemical hazards.
Extra thick medical examination gloves - 60mil. Great for extra protection.
These goggles meet the ANSI Z87.1, 2010 High Impact standards.
Highly durable lab apron made of rubberized cloth is impermeable and easy to clean, perfect for all manner of lab or classroom experiments
These ear plugs are made of self adjusting foam that provides a comfortable, low pressure fit and excellent sound filtration.
Recommended for protection against chemical splashes. A must have for every young chemist!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
Build a model green house and 9 other green energy-related devices with this great kit!
This toy combines the wonders of Sea Monkeys and glow-in-the-dark fun, all in one!
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
Discover how solar cells make electricity with this awesome kit!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
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.