aluminosilicate
noun
- mineral chemically consistent of aluminum and silicon oxide
Wiktionary
noun
Etymology: Etymology tree English alumino- English silicate English aluminosilicate From alumino- + silicate.
- Any of many silicate minerals, such as feldspar and zeolite, in which a proportion of the Si⁴⁺ ions are replaced by Al³⁺, the excess negative charge being balanced by extra sodium, potassium or calcium ions.