Landauite is a rare mineral discovered in 1959, named after the famous physicist Lev Landau. The IPA phonetic transcription of the word is /landaʊaɪt/, which means that it is pronounced as "LAN-dow-ite," with the stress on the first syllable. The spelling of Landauite is interesting because it contains a diphthong (the sound /aʊ/) followed by the vowel sound /aɪ/. This combination of two vowels that form a single sound is not common in English, and it is what makes the spelling of Landauite unique.