Studi Karakteristik Tailing Pada Lokasi Eks Penambangan Timah di Bukit Sambung Giri Kecamatan Merawang Kabupaten Bangka

Tailing deposits at ex-tin mining area in Bangka and Belitung Island has a large number of economical residual minerals. This study is to identify tailing characteristic and its potential mineralogy and elements based on shallow hand boring (Auger) samples, along stream line in west part of Sambung Giri Hill. Every coordinate sample plotted on base map. Loboratory analisys using Strereo Mikroscope for identify minerals characteristics, and geochemical analysis using XRF for identification the presence of elements. The tailing deposits has laterally grain size gradation to down stream, composed above 94% sand fraction, and small amount of shale and granule fraction. Quartz mineral presence more then 90%, followed by iron oxide (hematite), clay, zircon, cassiterite, ilmenite, monazite and tourmaline minerals, showed low consistency in lateral spatial exept quartz, with its Rare Earth Elementh (REE) composition is Cerium (Ce), Lanthanum (La), Yttrium (Y), Neodymium (Nd) and Samarium (Sm).