Capranicaite, ideally KCaNaAl4B4Si2O18, is a new inosilicate mineral from the Vico volcanic complex collected at Capranica, Viterbo Province, Latium, Italy. It occurs in miarolitic cavities of a feldspathoid-bearing syenite ejectum and formed by late-stage metasomatic processes related to the activity of the Vico volcano.Capranicaite is monoclinic P21/n, with a = 4.8507(2), b = 16.6156(6), c = 20.5445(7) Å, β = 90.245(1)°, V = 1655.82(17) Å3, Z = 4.
Capranicaite , (K,vac)(Ca,Na)Al4B4Si2O18:a new inosilicate from Capranica, Italy, with a peculiar topology of the periodic single chain [Si2O6]
CALLEGARI, ATHOS MARIA;BOIOCCHI, MASSIMO;
2011-01-01
Abstract
Capranicaite, ideally KCaNaAl4B4Si2O18, is a new inosilicate mineral from the Vico volcanic complex collected at Capranica, Viterbo Province, Latium, Italy. It occurs in miarolitic cavities of a feldspathoid-bearing syenite ejectum and formed by late-stage metasomatic processes related to the activity of the Vico volcano.Capranicaite is monoclinic P21/n, with a = 4.8507(2), b = 16.6156(6), c = 20.5445(7) Å, β = 90.245(1)°, V = 1655.82(17) Å3, Z = 4.File in questo prodotto:
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