An approach to understanding the factors in the emerald enhancement clarity grading system used at CDTECGemlab
Javier Garcia-Toloza, Juan David Rincón, Cristian Ochoa, Julio Cedeño Carlos
Gem-quality pink fluorite from Planggenstock, Switzerland: chemical and physical properties and a comparison with pink fluorites from other localities
In this study, first results of trace element analyses and various spectrometric investigations on p
Gem zircon and sapphire age dating and application of origin determination: A study from New England sapphire fields, New South Wales, Australia
Ahmadjan Abduryim, Frederick Lin Sutherland, Terry Coldham, Elena Belousova Download Pdf