Beryllium oxide (BeO) is a white crystalline oxide. It is notable as it is an electrical insulator with a thermal conductivity higher than any other non-metal except diamond, and actually exceeds that of some metals. Its high melting point leads to its use as a refractory. It occurs in nature as the mineral bromellite. Historically beryllium oxide was called glucina or glucinium oxide.
Beryllium oxide (BeO) is a white crystalline oxide. It is notable as it is an electrical insulator with a thermal conductivity higher than any other non-metal except diamond, and actually exceeds that of some metals. Its high melting point leads to its use as a refractory. It occurs in nature as the mineral bromellite. Historically beryllium oxide was called glucina or glucinium oxide.