Diamond

Name:
Diamond
Detailed information:

Chemistry structure:
Properties:
High refractive index (2.42), d 3.50, coefficient of friction 0.05, highest thermal conductivity of any substance, transparent to infrared, mp 3700C, bp 4200C. The purest diamonds used for gems are mined in South Africa, lower grades in Brazil, Venezuela, India, Borneo, Arkansas. Also made synthetically by heating carbon and a metal catalyst in an electric furnace at about 3000F under high pressure.
Use:
Special surgical knives, windows in space probes, high-capacity transmitters.

See Diamond, Industrial.