Jakarta Selatan, Indonesia. 26th Apr, 2016. Researcher operates Scanning Electron Microscope 'SEM' machine to capture rock mineral photos. SEM used to analyze rock minerals up to 1µm. It can zoom than usual polarize microscope. © Anton Raharjo/Pacific Press/Alamy Live News

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Keywords: electron, electronic, gas, geologist, geology, laboratory, microscope, mineral, natural, oil, research, rock, scanning, science, sedimentology, sem