. . . . "vitreous, greasy"@es . "Gehlenite, (Ca2Al[AlSiO7]), is a sorosilicate, Al-rich endmember of the melilite complete solid solution series with akermanite. 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."@es . . "Tetragonal"@es . "5"^^ . "Gehlenite"@es . . "Gehlenite, (Ca2Al[AlSiO7]), is a sorosilicate, Al-rich endmember of the melilite complete solid solution series with akermanite. 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."@es . . "Ca2Al[AlSiO7]"@es . . "\u03B4 = 0.010"@es . "Gehlenite"@es . "Distinct/good"@es . "yellow-brown, green-grey, colourless"@es . . "white, grey-white"@es . . . .