Potensi Mineral Cassiterite dan Ilmenite pada Daerah Bekas Penambangan Timah Bangka

Abstract

Mining and processing minerals can not to reach obtaining (recovery) one hundred percents. Minerals
that thrown with tailing, are minerals pricy that can to be exploited back as value add for company
side. Before be done reklamasi and mine closing, necessary be knowing mineral 's potency that still
exist to mining ex area, to run the principle conservation of mineral resources. Research in mineral
cassiterite and ilmenite that got to sediment tailing result tin washery, be done with way drilling with
distance 100 x 50 m in sediment localization mine tailing TN 3.10 Air Lempuyang PT Timah (persero)
Tbk with coordinate UTM (633672 E; 9748033 N). Wide of area the mentioned research be counted its
wide with to use it mapinfo program and the coordinate's withdrawal to use it Global Positioning
System (GPS). Wide of area tailing's sediment to be guessed ± 9,74 ha. Drilling process to get it
sample/ conto be done with to use it hand auger. S ampel mentioned be analyzed in physics
laboratory and chemistry that is grain counting minerals for 124 sample to know type and degree of
minerals, 1 komposit's sample be analyzed by classic method it’s volumetri and spectofotometri to
know total Fe total and degree of TiO2. Laboratory analysical Result, identificated mineral cassiterite,
ilmenite, pyrite, iron oksida, limonite, muscovite, tourmalin, sand clay and quatz. With to use it the
method of area of influence calculation, be got resource number mineral cassiterite and ilmenite that
got to sediment tailing mentioned.