phonolite (Q41856)
From geokb
Phonolitoid in which the plagioclase to total feldspar ratio is less than 0.1. Rock consists of alkali feldspar, feldspathoid minerals, and mafic minerals.
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | phonolite |
Phonolitoid in which the plagioclase to total feldspar ratio is less than 0.1. Rock consists of alkali feldspar, feldspathoid minerals, and mafic minerals. |
