C3A1L1C3T1U1F4A1
15 points
CALCTUFA is validvalid
a mineral deposit [n CALCTUFAS]
a rock made of fine volcanic detritus, also TOPH, TOPHE, TUFA [n -S]
a mineral deposit [n CALCTUFAS]
a rock made of fine volcanic detritus, also TOPH, TOPHE, TUFA [n -S]