"Tacon," a word often used in the mining industry, is spelled phonetically as /'teɪkən/. The first syllable "tay" is pronounced with a long "a" sound, and the second syllable "con" is pronounced with a short "o" sound. The word is used to describe a type of rock that is formed from volcanic ash and is commonly found in areas where there have been volcanic eruptions. Spelling words phonetically allows for more accurate pronunciation and understanding of unfamiliar words.