The Press of the Future Above the pressure at which diamond is expected to change into a metal, a conventional diamond anvil would shatter.

When a minute puff of oxygen is compressed in this diamond anvil to a pressure of about 100,000 times that of the atmosphere, red oxygen materializes.

This form of glass, called amorphous carbonia, was produced by supercooling heated at extreme pressure (40-48 GPa or about 400,000 atmospheres) in a diamond anvil.

Recently, sintered diamond anvils have been developed for this type of press that can reach pressures of 90 GPa (2700 km depth).

Specialized applications include use in laboratories as containment for high pressure experiments (see diamond anvil), high-performance bearings, and limited use in specialized windows.

The two gases were compressed in a diamond anvil to almost 100,000 times atmospheric pressure.

It can be formed at 250K in a diamond anvil at a pressure of 300Mpa (3000 Bars).

The changes in mineralogy with depth have been investigated by laboratory experiments that duplicate high mantle pressures, such as those using the diamond anvil.

The pressure-transmitting medium is enclosed by a gasket and the two diamond anvils.

It is often studied using diamond anvils.