aluminous

It dyes a fast blue upon linen and cotton goods, with tin and aluminous mordants.

For the most part they consist mainly of aluminous silicates, some of them being highly acid compounds with 75% or more of silica.

Upon granite soils, it will be of less value than silicious or aluminous ones.

Here we observed extensive beds of aluminous earth, of a dark grey colour, alternating with red and yellowish white sandstone.

Alumina is high in the finer clays (18 to 30%), and they are the most aluminous of all sediments, except bauxite.