For our Gem Mapping portion of the project, geographic coordinates were first pinpointed for gem locations, then a spreadsheet was prepared with latitude and longitude for each species of gemstone. Environmental Systems Research Institute, Inc. (ESRI) ArcMap GIS was used for creation of gemstone layer files using our prepared dataset. ESRI base maps in Plate Carrée Projection were used. Each gemstone has a unique marker and we endeavored to use a color that relates to each gemstone.

For additional reference PDF files of the maps were prepared in ArcMap and are included. These PDFs have layers that may be turned on-and-off and geographic coordinates may be identified on the maps using the geospatial analysis tool in Adobe Reader (under Tools/Analysis).