Identification of Radiometric and Mineragraphy Analysis of Uranium and Sulfide Mineral at BM-179 Kalan-West Kalimantan Uranium Ore
Keywords:
Radiometric, Mineragraphy analysis, BM-179 uranium ore, Sulfide, Uranium.Abstract
The BM-179 uranium ore is the ore rock from Kalan that derived shaft 179 m at Ekoremaja Hill in Kalan-West-Kalimantan Indonesia that has uranium and sulphide minerals and mineral complex combinations. This study aims to identify of radiometric and mineragraphy analysis qualitatively against sulfide and uranium minerals at BM-179 Kalan-West-Kalimantan uranium ore. The method of research begins done by cutting 3-8 cm ore using a grandsaw cutlery, sample selection using the ROS (radiometric ore sorting) by SPP-NF and mineral identification using mineragraphy analysis (polishes method) through the use of mount press for microstructural analysis, polisher ecomet III grinder tool and reflectance microscopy. The results obtained are BM-179 Kalan uranium ore size 3-8 cm has radiometric less than 1000 cps as much as 75% by weight of the ore and has radiometric more than 1000 cps as much as 25% by weight of the ore. From the results of the identification of mineragraphy ore known that many uranium minerals contained in the ore by radiometric more than 1250 cps, while there are many sulfide minerals in the ore which has a radiometric less than 1250 cps. Qualitatively known that the sulfide content of up to 5 % contained at the BM-179 ore with radiometric 150-500 cps, and the highest uranium content reaches 3 % contained at the BM-179 ore with radiometric 5000-15000 cps.
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