Figure 10

Sentinel-2A PCA Composite bands 4, 3, 2 showing the distinct boundaries between the investigated beryl-bearing bedrocks and groundwater wells in Igla mine area, CED (a), Zabara-Um Addebaa belt (b), and Homret Akarem, and Homret Mukpid areas (c), SED of Egypt. This figure was created using software; SNAP V. 9 and ArcGIS V. 10.6. Sentinel-2A data (USGS), (https://earthexplorer.usgs.gov/). The acquisition date as iin Fig. 8.