bɪkˈʌz jʊɹɹˈeɪniəm mˈɪnɚɹəlz ɪmˈɪt ɹˈeɪdɑːn ɡˈæs, ænd ðɛɹ hˈɑːɹmfəl ænd hˈaɪli ɹˌeɪdɪoʊˈæktɪv dᵻkˈeɪ pɹˈɑːdʌkts, jʊɹɹˈeɪniəm mˈaɪnɪŋ ɪz kənsˈɪdɚɹəbli mˈoːɹ dˈeɪndʒɚɹəs ðɐn ˈʌðɚ ɔːlɹˌɛdi dˈeɪndʒɚɹəs hˈɑːɹd ɹˈɑːk mˈaɪnɪŋ, ɹᵻkwˈaɪɚɹɪŋ ˈædɪkwət vˌɛntɪlˈeɪʃən sˈɪstəmz ɪf ðə mˈaɪnz ɑːɹ nˌɑːt ˈoʊpən pˈɪt.
Because uranium minerals emit radon gas, and their harmful and highly radioactive decay products, uranium mining is considerably more dangerous than other (already dangerous) hard rock mining, requiring adequate ventilation systems if the mines are not open pit.