Mineralogy of travertine deposit in Cisolok geothermal field, Sukabumi, West Java, Indonesia

Travertine is a geothermal surface feature that forms by the deposition of carbonate from discharging supersaturated thermal bicarbonate fluid. This study was conducted to determine travertine rocks mineralogy found in Cisolok geothermal area, Sukabumi, West Java. Petrographic, diffraction, and elemental analysis were performed on several recent and paleo-travertine samples. The petrographic and diffraction method confirms the presence of calcite and microcrystalline. The paleo-travertine deposit showed a more diverse texture through chemical elemental analysis. The analysis showed that the abundance of calcite minerals and the absence of aragonite indicate the intermediate low temperature geothermal system in Cisolok.