- some of a group of feldspars being combined salt and potassium aluminosilicates.
- A feldspar closely linked to orthoclase, but triclinic. It's chiefly a silicate of salt, potassium, and aluminium. Sp. gr., 2.57 -- 2.60.
- A triclinic feldspar allied to microcline but containing a considerable amount of soda: characteristic of particular igneous rocks, as the andesite of Pantelleria.
Sentence for "anorthoclase"
- Blocks of anorthoclase - and clinopyroxene-bearing…
Synonym for "anorthoclase"