Characterization and environmental application for the zeolites from Romana (NW Sardinia, italy)

Zeolites, mainly clinoptilolite and mordenite, are widespread in northern and central Sardinia, and deposits are distal from the vents. Zeolites form in situ-altered and epiclastic mineralization. The former shows higher zeolite contents than the latter, and zeolitization phenomena pervasively affect the ash-rich and pumice-rich layers. Principally deuteric processes gave rise to phreato-magmatic deposit-types and deposits formed in open hydrologic systems. Epiclastic mineralization originated from weathering of the volcanic ash-products. The paper reports on information about mineral-chemical features of zeolites occurring in the area of Romana (NW Sardinia) and potential applications in environmental field