Karakterisasi Zeolit Alam Asal Pantai Manikin, Kabupaten Kupang, Nusa Tenggara Timur

Faustina De Yesu Prisila Abi (Universitas Katolik Widya Mandira)
Dionisia Hariani Nada (Universitas Katolik Widya Mandira)
Anggelinus Nadut (Universitas Katolik Widya Mandira)
Gertreda Latumakulita (Universitas Katolik Widya Mandira)
Maximus M. Taek (Universitas Katolik Widya Mandira)

Lambda: Jurnal Ilmiah Pendidikan MIPA dan Aplikasinya
Vol. 5 No. 2 (2025): Lambda : Jurnal Ilmiah Pendidikan MIPA dan Aplikasinya

Natural zeolite from Manikin (ZAM), Kupang Regency, has been successfully characterized by XRF, FTIR-ATR, powder-XRD and SEM. XRF results show that the three most abudant elements in ZAM are Si (68.1%); Fe (11.9%) and K (9.76%). Meanwhile, there is absorption at wave number 100.45 cm-1 which indicates the presence of asymmetric O-Si-O and O-Al-O. Based on the XRD diffraction pattern of the powder analyzed by the rietvield method, it shows that ZAM consists of SiO2 and mordenite-type zeolite minerals complexed with Na and Ca metals. As for morphology of ZAM, it consists of various shapes and one of them is sharp like a needle.