K Feldspar from selected localities.
Italy | |
| [var: Adularia] |
| [var: Adularia] Orlandi, P., Dini, A. (2004) Die Mineralien der Buca della Vena-Mine, Apuaner Berge, Toskana (Italien). Lapis: 1: 11-24. |
| Biagioni, C., Orlandi, P., Pasero, M. (2009): Ankangite from the Monte Arsiccio mine (Apuan Alps, Tuscany, Italy): occurrence, crystal structure, and classification problems in cryptomelane group minerals. Periodico di Mineralogia, 78(2), 3-11 |