Definitions

1. adjective

Pertaining to felsite or felsitic rocks, which are types of volcanic rocks composed primarily of quartz and feldspar.

“The geologist studied the felsitic structure of the ancient volcano.”

2. noun

A type of volcanic rock composed primarily of quartz and feldspar, often used as a building material.

“The felsitic blocks were used to construct the ancient temple.”

3. adverb

In a manner characteristic of felsite or felsitic rocks.

“The rocks were formed felsitically, with a unique blend of minerals.”