Definition of sillimanite in English:

sillimanite

Line breaks: sil¦li|man¦ite
Pronunciation: /ˈsɪlɪmənʌɪt
 
/

noun

[mass noun]
An aluminosilicate mineral typically occurring as fibrous masses, commonly in schist or gneiss.
More example sentences
  • Muscovite and aluminosilicates are almost entirely absent although, where present, the aluminosilicate is sillimanite.
  • The aluminium silicate minerals andalusite, kyanite, and sillimanite are good examples of this phenomenon of polymorphism.
  • Growth of titanite took place during the metamorphic climax in rocks from the kyanite and sillimanite zones.

Origin

mid 19th century: from the name of Benjamin Silliman (1779–1864), American chemist + -ite1.

More definitions of sillimanite

Definition of sillimanite in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day semblance
Pronunciation: ˈsɛmbləns
noun
the outward appearance or apparent form of something…