STILPNOMELANE

стильпномелан, K(Fe, Mg, Al)3Si40,o(OH)2-^H20; (K,H₂O) (Fe2+, Fe3+, Mg, Al)<3·[(OH)₂|Si₄O₁₀]·Xn(H₂O)(?); K[(Fe+2),Mg,(Fe+3),Al]8(Si,Al)12 (O,OH)27*2H2O; (K, H2O)(Fe2+, Fe3+, Mg, Al)<3 ·[(OH)2| Si4O10]·Xn(H2O)(?); K(Fe++,Mg,Fe+++,Al)8(Si,Al)12(O,OH)27.2H2O; (K,Ca,Na)(Fe2+,Mg,Al,Fe3+)8(Si,Al)12(O,OH)36· nH2O