Niccioleta Mine, Massa Marittima, Grosseto Province, Tuscany, Italy

A pyrite mine owned by Solmine. Closed before 1984.

Niccioleta mines are very famous mostly for pyrite great crystals, but there are other great crystalized minerals which came out of that mine, such as gypsum and sulphur too. The minerals can be found in two distinct enviromental occurrences: a group related (and in association) with the main ore minerals , and another group in the skarn occcurrence.

At first group can be listed: Ankerite, Arsenopyrite, Azurite, Boulangerite, Calcite, Celestine, Cerussite, Chalcopyrite, Copiapite, Cotunnite, Dolomite, Enargite, Epsomite, Fibroferrite, Fluorite, Galena, Goethite, Goslarite, Gypsum, Halotrichite, Hematite, Jamesonite, Magnetite, Malachite, Marcasite, Melanterite, Orpiment, Pickeringite, Pyrite, Quartz, Realgar, Semseyite, Siderite, Sphalerite, Stibnite, Sulphur, Tetrahedrite

At the second group (skarn related minerals) can be listed:
Bornite, Chalcopyrite, Pyrrhotite, Pyrite, Bismuthinite, Fluorite, Magnetite, Hematite, Quartz,Siderite, Dolomite, Anhydrite, Erythrite, Andradite, Ivaite, Hedembergite, Epidote, Chlorite, Adular

Refs.:
- Arisi Rota F., Vighi L. (1971) - Le mineralizazioni a pirite e solfuri misti - La Toscana Meridionale - rend. Soc. It. Miner. Petr., 27, (fasc. spec.), pp. 370-420
- De Michele V. (1974) - Guida Mineralogica d'Italia - Miniere di Pirite del Massetano - Ist. Geogr. De Agostini, Novara, vol. II, pp. 75-80
- Carobbi G., Rodolico F. (1976) - I minerali della Toscana - Leo S. Olsckhi Edit. - Firenze, pp. 78-83
- Lattanzi P., Tanelli G. (1978) - Considerazioni genetiche sulla Cotunnite del giacimento a pirite di Niccioleta - Rend. Soc. Ital. Mineral. Petrol., 34, pp. 37-44
- Bralia A., Sabatini G., Troja F. (1979) - a revaluation of Co-Ni ratio in pyrite as gochemical tool in ore genesis problem - Mineral Deposita, 14, pp. 353-374
- Pier Scortecci & Mauro Tazzini (1979) The Niccioleta and Bocceggiano pyrite mines, Tuscany Mineralogical Record 10:281-291.
- Cortecci G., Lattanzi P., Leone G., Pochini A., Tanelli G. (1980) - Gli isotopi dello zolfo nei giacimenti a pirite di Niccioleta, Gavorrano Boccheggiano e Ritorto (Toscana Meridionale) - datio preliminari - Rend. Soc. Ital. Miner. Petrol., 36, pp. 227-261
- Lattanzi P., Tanelli G. (1980) - A Berthierite related mineral from the pyrite deposit of Niccioleta, Tuscany - Rend. Soc. Ital. Mineral. Petrol., 36, pp. 788-789
- Marinelli G. (1983) - Il magmatismo recente in toscana e le sue implicazioni minerogenetiche - Atti Giornate di Studi Geol., Petrol., Giacim."B. Lotti" - Memorie Soc. geol. Ital., 24, pp.111-124
- Belkin H., De Vivo B., Lattanzi P. (1983) - Fluid inclusion studies on ore deposits of Tuscan aremma, Italy - Mem. soc. geol. It., 25, pp. 26-34
- Orlandi P. (1984) - Segnalazione di nuove specie mineralogiche da località italiane - Riv. Min. ital., Milano, fasc. 2, pp. 33-40
- Mining Annual Review (1985): 499.
- Brizzi G., Capperi M., Masotti A. - La miniera di pirite di Niccioleta, Massa Marittima (GR) - Rivista Mineralogica Italiana, Milano, Fasc. 4 (1989) e Fasc. 1 - 2(1990)