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Monteponi Mine, Iglesias, Carbonia-Iglesias Province, Sardinia, Italy

Photo: L.C. 2011
Miniera Monteponi, Iglesias, Carbonia-Iglesias, Sardegna, Italia

A lead-zinc mine owned by SAMIN. Produced 4,031 tons of sphalerite and 639 tons of galena (1984).

In this mine (mining complex) has been also discovered in 1901 the mineral monteponite (Wittich E., Neumann B.-1901- Ein neues Cadmium Mineral - Zentr Miner. Geol. Paleont. - 549-551.). About this, in a sample of yellow "calamina" (smithsonite) given to them by a technician of the metallurgic plant, in 1901 Wittich & Neumann found a mineral constituted by CdO, and they gave it the name of monteponite. The sample came in fact from the dumps of Genna Rutta or Genn'e Rutta, located 2.5 km WSW of Monteponi. After this casual founding, monteponite has not been seen again even if some collector claimed its finding in two other localities of this comprensory (Seddas Moddizzis), over yellow smithsonite, or in the dumps of the Congiaus excavations (cavo Biscia e Scavo Usai). During a systematic screening of many samples, monteponite has been found once again at "Level -100" (it means - 100 m below sea level) of the Monteponi mine.



Mineral List

Anglesite
Aragonite
Aurichalcite
Baryte
Calcite
Cerussite
var: Zincian Cerussite
Cinnabar
Dolomite
Galena
Gaspéite
Goethite
Hemimorphite
Hydrozincite
Lanarkite
Leadhillite
Melanterite
Mercury
Minium
Monteponite (TL)
Phosgenite
'Psilomelane'
Pyrite
Pyromorphite
Siderite
Siderotil
Smithsonite
Sphalerite
Sulphur
Zincite


30 entries listed. 28 valid minerals. 1 type locality (valid mineral).

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References

- De Michele, V. (1974). Guida mineralogica d'Italia. Istituto Geografico De Agostini, Novara, 2 vol.
- Mining Annual Review (1985): 499.
- Forti, P., Perna, G. (1988): Genesi della Monteponite di Monteponi (CA) - Rivista Min. Italiana, Milano, fasc. 1, pp. 45-49.
-Guastoni, A., & Pezzotta, F. (2007). Fosgenite di Monteponi: Francesco Mauro e la collezione di fosgeniti del Museo di Storia Naturale di Milano. Rivista Mineralogica Italiana, 31 (4), 248-255.

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