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Na-LTA zeolite crystals were synthesized via hydrothermal method using aluminum scraps and industrial sodium metasilicate. The obtained hydrogel with molar composition: 3,741 Na 2 O: Al 2 O 3 :1.450 SiO 2 :175.520 H 2 O was aged at room temperature for 14 hours and heated at 80°C for 6 hours. The use of aluminum scraps provides well crystallized cubic Na-LTA zeolites with truncated edges and apexes. When H 2 O/Al 2 O 3 molar ratio was decreased: 3.741 Na 2 O: Al 2 O 3 :1.450 SiO 2 :92.50 H 2 O there is formation of an intergrowth of FAU/EMT phases contaminated with LTA zeolite after 6h of crystallization. The prolongation of the crystallization time to 48 hours leads the formation of hydoxysodalite zeolite. On the other hand, the increase of aging time to 96 hours, the crystal sizes of zeolite decrease.