GEO-520-04 Refractive Index of Glass by GRIM.pdfhttps://fbilabqsd.fbi.gov/file-repository/trace-evidence/geo-520-04-refractive-index-of-glass-by-grim.pdf/viewhttps://fbilabqsd.fbi.gov/file-repository/trace-evidence/geo-520-04-refractive-index-of-glass-by-grim.pdf/@@images/image