Application of Fibre Optics Reflectance Spectroscopy (FORS) for the determination of mineral pigments in jasper

This study describes hessonite (Fe-bearing variety of grossular garnet), found in the Birlamunda vil

Performing a literature search is a very important—but often neglected—part of doing gemmologica

Ahmadjan Abduryim, Frederick Lin Sutherland, Terry Coldham, Elena Belousova Download Pdf