Fig. 6
From: Quantitative mapping of trace elements in agate using LA-ICP-MS
The optical image, quantitative maps, and qualitative X-ray maps of the blue agate sample. a Photomicrograph of ablated area. b–d LA-ICP-MS quantitative maps of Al, Fe, and Ti. Scale bars represent concentrations of each element in parts per million. e Composite quantitative maps with two reference white lines. f Qualitative X-ray map of Al