The word "katoptrite" is quite complex in its spelling. The IPA phonetic transcription for this word is /kætɒptraɪt/. The "k" at the beginning corresponds to a hard "c" sound, while the "a" following it is pronounced as in "cat". The "p" in the middle of the word is followed by a "t", which is enunciated with a glottal stop. The "r" in "katoptrite" is rolled, and the final "ite" is pronounced as "ight". All in all, it is a word that requires careful attention when pronounced.