Name & Location: Quartz, Calcite, La Sassa, Montecatini Val di Cecina, Pisa Province, Tuscany, Italy.
Size: 5 x 3 x 2-inches
Notes: Best known locality for fluorescent quartz, soon to be off limits to collectors. Specimen chemically treated to remove CaCO3 (some fluorescent red calcite present). Fluoresces under all wavelengths.