noun
Meaning 1
A hexagonal-dihexagonal pyramidal black mineral containing aluminum, hydrogen, iron, oxygen, titanium, and vanadium.
Definition source: English Wiktionary via Wiktextract
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