noun
Meaning 1
A tough, compact mineral aggregate, of a white, greenish, or greyish colour. It is an aggregate of albite, zoisite, prehnite and other aluminium silicates, and is produced by the alteration of feldspar.
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: chemistry, geography, geology, mineralogy, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided