Hellandite Group from Lazio, Italy
Italy | |
| forum.amiminerals.it (n.d.) http://forum.amiminerals.it/viewtopic.php?t=3843 |
| M.E. Ciriotti collection (EDS probed) |
| Antonio Borrelli collection |
Bortolozzi, Giorgio (n.d.) Personal Communication. | |
| Cámara,F., Williams,C.T., Della Ventura,G., Oberto,R. & Caprilli,E. (2004): Non-metamict betafite from Le Carcarelle (Vico volcanic complex, Italy): occurrence and crystal structure, Mineralogical Magazine, 68, 939-950. |
Tre Croci, Vetralla, Viterbo Province, Lazio, Italy