“…Neuhoff et al, 2000;Bish and Ming, 2001;Giampaolo et al, 2008;Campbell et al, 2012;Langella et al 2013;Weisenberger et al, 2014;Cappelletti et al, 2015). This has particular relevance to hydrothermal, surface and diagenetic systems, where mineral compositions can track changing fluid regimes (Hay and Sheppard, 2001;Langella et al, 2001;Utada, 2001, Campbell et al, 2012Langella et al 2013;Weisenberger et al 2014). Where natural mineral reaction paths involving zeolites are combined with other geological criteria, they have potential value in mineral exploration (Campbell et al, 2012(Campbell et al, , 2013(Campbell et al, , 2014, in deepening understanding of global carbon cycling and climate change (Heister et al, 2001;Campbell et al, 2012) and in contributing to the rationalization of volcanic hazard processes (Giampaolo et al, 2008;Bear et al, 2009;Vignaroli et al, 2014).…”