Italy, Sardegna, Oristano prov., monte Arci area

Monte Arci area is a volcanic massif, located in the north of Medio-Campidano province, not far from the Gulf of Oristano. It is a recent complex (end Pilocene, early Plestocene), standing of sedimentary rocks, with mainly rhyolites, obsidian, trachyte and andesite

	Cordierite Reddish XX, max 0.3cm long, on rhyolite 10x8cm Arci Mt, Fontanafigu quarry, Marrubiu, Oristano. Italy Specimen n.550 Another photo: a bigger view
	Osumilite Black XX in a vug of rhyolite covered by trydimite, up to 0.2 cm wide 6x7m Arci Mt, Fontanafigu quarry, Marrubiu, Oristano. Italy Specimen n.1064 Another photo: bigger view

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