Word.ws English Dictionary

sillimanite

sillimanite noun: a fibrous neosilicate mineral, polymorphic with andalusite and kyanite, with the chemical formula Al₂SiO₅.

sillimanite: a fibrous neosilicate mineral, polymorphic with andalusite and kyanite, with the chemical formula...
Image: S kitahashi, CC BY-SA 3.0, via Wikimedia Commons

Noun

sillimanite (countable and uncountable, plural sillimanites)

  1. A fibrous neosilicate mineral, polymorphic with andalusite and kyanite, with the chemical formula Al₂SiO₅.

Synonyms of sillimanite

Forms of sillimanite

pluralsillimanites

Origin of sillimanite

From Silliman + -ite. Named after American chemist and geologist Benjamin Silliman (1779-1864) in 1824.

Questions about sillimanite

What does sillimanite mean?
Sillimanite means a fibrous neosilicate mineral, polymorphic with andalusite and kyanite, with the chemical formula Al₂SiO₅.
What part of speech is sillimanite?
Sillimanite is a noun.
What is the plural of sillimanite?
The plural of sillimanite is sillimanites.

Words near sillimanite in the dictionary

  1. sillification
  2. sillikin
  3. sillikins
  4. sillily
  5. Silliman
  6. sillimanite
  7. sillimanites
  8. sillimanitic
  9. Sillimans
  10. silliness
  11. sillinesses

Source and license

Adapted from Wiktionary: sillimanite (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “sillimanite.” Word.ws, https://word.ws/sillimanite. Based on Wiktionary, CC BY-SA 4.0.