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

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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).

References