Thomsenolite is a mineral named after the Danish mineralogist Hans Peter Jørgen Julius Thomsen. Its chemical formula is NaCaAl4Si6O18·6H2O. The correct spelling of Thomsenolite is [ˈtɔmsənəlaɪt], with stress on the second syllable. The first syllable contains the vowel sound /ɔ/ as in "caught", and the second syllable contains the diphthong /aɪ/ as in "guy". The final syllable has short /ɪ/ as in "kit". Therefore, the word is spelled with two "o" and one "e" in the middle.
The word "Thomsenolite" is named after its discoverer, the Danish chemist Hans Peter Jørgen Julius Thomsen. He first identified and described the mineral in the late 19th century. The suffix "-olite" is a common mineralogical term used to indicate a mineral.