Richiedi una copia del documento: Veblenite, K2_2Na(Fe2+5 Fe3+4 Mn2+7_)Nb3Ti(Si2O7)2 (Si8O22)2O6(OH)10(H2O)3, a new mineral from Seal Lake, Newfoundland and Labrador: mineral description, crystal structure, and a new veblenite (Si8O22) ribbon

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