*Corresponding author, e-mail: d_deliaro@yahoo.com co 6 Key-words: ardealite; hydrated calcium acid phosphate...Mountains, Romania), following the identification of a new species by Halla (1931). This was the first report...reported from more than 20 other caves (Hill & Forti, 1997), including six new occurrences in Romania (e.g...variation. In spite of a relatively large number of new occurrences, the chemistry of the mineral has not...the process, investigations of some other caves in the South Carpathians revealed numerous additional |