23. Oct IGC 2023 Colour change Paraiba tourmaline from Brazil By Claudio C. Milisenda, Stefan Müller Download Pdf Tourmaline
23. Oct IGC 2023 A Review and Synthesis of the Geology and Gem Resources of Granitic Pegmatites in Southern California, USA Gem-bearing pegmatites in Southern California are hosted by the Peninsular Ranges batholith, and occ Read More Elodie
23. Oct IGC 2023 Mechanism and Application of High-Temperature Copper Diffusion in Surface Recoloring of Labradorites Feldspar, with the chemical formula of [KAlSi3 O8 ]x[NaAlSi3 O8 ]y[CaAl2 Si2 O8 ]z (x + y + z = 100) Read More Elodie
23. Oct IGC 2023 Treated jadeite-jade: Unusually bright fancy colours Jadeite-jade is a precious ornamental stone that has been valued as the topmost decorative stone and Read More Elodie
