{"version":"1.0","type":"link","title":"Intermediate composition - Newikis","description":"In igneous petrology, an intermediate composition refers to a rock whose chemical composition is intermediate between felsic and mafic compositions, typically containing about 52–63 wt% SiO2. It is not an IUGS recognized term.","provider_name":"Newikis","provider_url":"https://newikis.com","cache_age":86400}