Color Science of Gem Stones – Viewpoints which Matter
Color Science of Gem Stones Key Terms Iridescence OrientPlay-of-color LabradorescenceChatoyancy ("cat's-eye") AsterismAdularescenceAventurescenceChange-of- color ("Alexandrite effect")PearlescenceOpalescence Causes of Color in Gemstones Sourcez: AN UPDATE ON COLOR IN GEMS. PART 1: INTRODUCTION AND COLORS CAUSED BY DISPERSED METAL IONS Three most common causes of color in gem materials: Dispersed metal ions Charge transfers and other processes that…
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