- Upper Valdarno (Upper Val d'Arno)
| Frost, R.L., Scholz, R., Ruan, X., and Fernandes Lima, R.M. (2015) A thermogravimetric, scanning electron microscope and vibrational spectroscopic study of the phosphate mineral santabarbaraite from Santa Barbara mine, Tuscany, Italy. Journal of Thermal Analysis and Calorimetry, 124, 639–644. Pratesi, G., Cipriani, C., Giuli, G., and Birch, W. (2003) Santabarbaraite: a new amorphous phosphate mineral. European Journal of Mineralogy, 15, 185-192 Pratesi, G. (1993) Iron phosphate minerals from Santa Barbara mine (Tuscany). Periodico di Mineralogia, 62, 5-12 |