Tacori Engagement Ring X-ray

Tanzanite - Wikipedia, The Free Encyclopedia
A thin layer containing cobalt, determined by X-ray fluorescence, had been applied to improve the color. Ring; Tiara; Tie clip; Tie pin; Toe ring; Watch. pocket; Making: People. Bench jeweler; Clockmaker; Goldsmith; Silversmith; Jewelry designer; Lapidary; Watchmaker; Processes. ... Read Article