The spelling of the mineral name "heideite" is pronounced as [ˈhaɪd.aɪt]. The IPA phonetic transcription can be broken down into individual sounds. The first two letters "h" and "ei" blend together to produce a long "i" sound. The "d" sound is followed by a short "a" vowel sound, and the final two letters "i" and "te" are pronounced as a single syllable, sounding like "ite." Heideite is a mineral containing copper, titanium, and sulfur that was discovered in 2019.