- silica glass,
- silicic acid,
Origin of siliceous
Examples from the Web for siliceous
The rejected scoriæ have been found to be composed of siliceous matter 59, oxide of copper 1, oxide of tin 0·7.A Dictionary of Arts, Manufactures and Mines|Andrew Ure
This is the fluor acid which volatilises the siliceous substance.Theory of the Earth, Volume 1 (of 4)|James Hutton
They appear to have been cracks, into which siliceous matter was infiltered.
Siliceous limestones, where their silica is original and of organic origin, have contained skeletons of sponges or radiolaria.
The siliceous grains in sand are usually rounded, as if by the action of running water.