Obsidian is a rock which is a type of naturally occurring glass produced by volcanoes. It lacks crystal structure, which can make it have extremely thin edges. This is the reason why obsidian was often used as arrowheads in a variety of ancient cultures. You can have your very own arrowhead to show to your friends! A great collectible item for the Native American art collector!
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 classic device is used to demonstrate the conservation of mechanical energy.
This chemistry learning and experiment kit comes with components and chemicals for over 75 amazing experiments!
A beautiful desk or bookshelf accessory for the reading fanatic in your family!
This kit will get your paper plane ready for takeoff!
This mirascope creates a 3D hologram image!
You don’t think recycling is cool? Get a look at this, we’re sure you’ll change your mind!