Where Did Those Gemstones Come From? Determining the Origin and Authenticity of Gemstones using E... Read More Where Did Those Gemstones Come From?
Can an XRF Spectrometer Accurately Measure Zn, Pb, Ba, Fe and Si... Elemental analysis of mined ore, its concentrates and refin... Read More Can an XRF Spectrometer Accurately Measure Zn, Pb, Ba, Fe and Si in a Variety of Sulfide Ores?