Boron is a chemical element that is found in the ground. It is unique because it is a metalloid, which means it has characteristics of both metals and non-metals. Boron is commonly used to make borosilicate glass, which is used in laboratory equipment, as well as in the production of some types of ceramics and insulation materials. In addition to its use in materials science, boron is also used as a dopant in semiconductors, which helps to control their electrical properties. Boron is also used as a neutron absorber in nuclear reactors, where it helps to prevent runaway nuclear reactions.