Meanings
nounsillimanite (countable and uncountable, plural sillimanites)
plural sillimanites
- countableuncountablechemistryA fibrous neosilicate mineral, polymorphic with andalusite and kyanite, with the chemical formula Al₂SiO₅.
Synonyms: bucholzite, fibrolite
Synonyms & antonyms
nounA fibrous neosilicate mineral, polymorphic with andalusite and kyanite, with the chemical formula Al₂SiO₅.
Similar
Origin
From Silliman + -ite. Named after American chemist and geologist Benjamin Silliman (1779-1864) in 1824.
Full word history & related roots →Translations
Dutch sillimaniet
- sillimanietmineral
Finnish sillimaniitti
- sillimaniittimineral
French sillimanite
- sillimanitemineral
German Sillimanit
- Sillimanitmineral
Italian sillimanite
- sillimanitemineral
Spanish silimanita
- silimanitamineral
Cite this entry
APA
sillimanite. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/sillimanite
MLA
“sillimanite.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sillimanite. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “sillimanite,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/sillimanite.
Source: sillimanite on Wiktionary, CC BY-SA 4.0.