How Do You Spell MALLARDITE?

Pronunciation: [mˈalɑːdˌa͡ɪt] (IPA)

Mallardite is a mineral named after the famous ornithologist John Mallard. Its chemical formula is Al_2(OH)_3(H_2O)_4[(UO_2)_3(SO_4)_2(OH)_4] and it belongs to the zippeite group. The pronunciation of mallardite is /ˈmæl.ər.daɪt/ with stress on the second syllable. The initial "m" is voiced while the final "t" is voiceless. The "ll" is pronounced as a geminate consonant, meaning that it is held for a longer duration than a single "l".