regarding or containing alum or alumina as aluminous minerals aluminous option
- with respect to or containing aluminum or alum
- regarding or containing alum, or alumina; because, aluminous minerals, aluminous answer.
(a.) Pertaining to or containing alum, or alumina; as, aluminous nutrients, aluminous solution.
Some clays, however, such as fireclays, contain very little potash or soda, while they are rich in alumina; and it is a fair inference that hydrated aluminous silicates, such as kaolin, are well represented in these rocks.