felsite

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Noun

1. {{lb|en|mineral}} A fine grained [[volcanic]] [[extrusive]] rock, generally light in color, composed of [[felsic]] [[minerals]].
2. {{lb|en|geology}} Any light-colored [[volcanic]] rock whose true [[mineralogy]] is not yet determined.

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.