MURMANITE, [2], DN

Classification by Godovikov, 1997

Family: Murmanite-lomonosovite
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Classification by Ciriotti, 2004

GROUP: LOMONOSOVITE (lomonosovite)DxGyG'zTi4(Si2O7)2XpX'q,n[Na3(PO4)]; x+2y+2z+4=2p+q

Definitions of Structure-type formulae elements