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 desk toy will keep you amused!
Build a model car that runs on hydrogen gas using a unique reversible fuel cell!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
Use this temperature-controlled soldering station for a variety of soldering applications!
This hanging Galileo thermometer is a gorgeous way to display the temperature outdoors!
This is a deluxe soldering station that can handle any kind of application!