beryllia

The beryl is a compound of silicates of beryllia and alumina, with the formula 3BeOSiO_ {2} + Al_ {2} O_ {3} ,3SiO_ {2}, or

The Chemistry, Properties and Tests of Precious Stones John Mastin

This is composed of glucina, which is glucinum oxide, or beryllia, BeO, of which there is 19.8 per cent., and alumina, or aluminium oxide, Al_ {2} O_ {3}, of which there is 80.2 per cent.

The Chemistry, Properties and Tests of Precious Stones John Mastin

Diamond is made of carbon; the pearl is calcium carbonate; ruby and sapphire are aluminum oxide -- varieties of the mineral corundum; the emerald is silica and alumina, with a minor amount of beryllia.

The Economic Aspect of Geology 1915

In the ordinary course of analysis, beryllia will be precipitated with alumina, &c., by ammonic hydrate.

A Text-book of Assaying: For the Use of Those Connected with Mines. Cornelius Beringer 1886

The carbon dioxide is boiled off, and the beryllia is then precipitated as hydrate with ammonia.

A Text-book of Assaying: For the Use of Those Connected with Mines. Cornelius Beringer 1886

The analysis of silicates containing beryllia is thus effected.

A Text-book of Assaying: For the Use of Those Connected with Mines. Cornelius Beringer 1886

The hydrate is washed with hot water, dried, ignited, and weighed as beryllia, BeO.

A Text-book of Assaying: For the Use of Those Connected with Mines. Cornelius Beringer 1886