noun
Meaning 1
A greenish-brown monoclinic mineral that is a basic silicate of calcium, vanadium, iron, magnesium and aluminium
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