Gehlenite, (Ca2Al[AlSiO7]), is a sorosilicate, Al-rich endmember of the melilite complete solid solution series with akermanite.Deer et al., 1993 Gehlenite: Gehlenite mineral information and data The type locality is in the Monzoni Mountains, Fassa Valley in Trento Province in Italy, and is named after Adolf Ferdinand Gehlen by A.J. Fuchs in 1815.Dana et al. 1997 Geological occurrence Gehlenite is found in carbonaceous chondrites from which it condensed as a refractory mineral in the hotter sta… (More on Gehlenite)