As with the medicinal springs in Bad Sebastiansweiler, the spring is made up of dissolved, sulfur-containing sodium hydrogen carbonate (Na-HCO3) from the rock (Black Jura).
æz wɪððə mədˈɪsɪnəl spɹˈɪŋz ɪn bˈæd sˈɛbɐstˌɪɐnswˌeɪlɚ, ðə spɹˈɪŋ ɪz mˌeɪd ˌʌp ʌv dɪsˈɑːlvd, sˈʌlfɜːkəntˈeɪnɪŋ sˈoʊdiəm hˈaɪdɹədʒən kˈɑːɹbənˌeɪt nˈɑːˌeɪtʃsˌiːˈoʊ θɹˈiː fɹʌmðə ɹˈɑːk blˈæk dʒjˈʊɹɹə.