noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A fine grained volcanic extrusive rock, generally light in color, composed of felsic minerals.

   "The buff-colored dacites of the Superstition Mountains are felsites."

2. 2
   Any light-colored volcanic rock whose true mineralogy is not yet determined.

Synonyms

All synonyms

euriteeurite

Example

More examples

"The buff-colored dacites of the Superstition Mountains are felsites."

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.