Identifikasi Mineral Pasir Tiga Warna Pantai Puntaru Kabupaten Alor-NTT

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Martasiana Karbeka Herianus Manimoy Bertho A Abolasinga

Abstract

Puntaru beach is famous for its three-colored sand that is mixed into one of them reddish-brown, black, and white sand. Research on the mineral composition of the tricolor sand has been conducted so that the use of three-colored sand is still done traditionally. This study aims to obtain information on the silica content and other mineral compositions of the three-colored sand of Puntaru Beach as initial data for further development. The three-color sand preparation process is carried out by the method of milling / crushing sand samples then sieving and washing with H2O. Stages of characterization of silica in three-colored sand were carried out using X-ray fluorescence (XRF), X-ray powder diffraction (XRD), and Fourier-transform infrared (FTIR). The analysis showed that the percentage of Si was the most dominant 45.28%, followed by Fe 25.94% and other minor elements. XRD results show that the three-colored sand contains quartz mineral (SiO2) identified at the main peak with 2 with in the 24.34 ° area. The black color of the sand is influenced by Fe content of 25.94% with hematite metal oxide (Fe2O3) 15.80% and reddish-brown influenced by the presence of sulfur (3.25%) in the form of mineral SO3 4.32%.


 

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How to Cite
KARBEKA, Martasiana; MANIMOY, Herianus; ABOLASINGA, Bertho A. Identifikasi Mineral Pasir Tiga Warna Pantai Puntaru Kabupaten Alor-NTT. Fullerene Journal of Chemistry, [S.l.], v. 6, n. 1, p. 34-38, apr. 2021. ISSN 2598-5868. Available at: <https://www.indochembull.com/index.php/fulerene/article/view/258>. Date accessed: 10 oct. 2026. doi: https://doi.org/10.37033/fjc.v6i1.258.
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