Crystal Hefner is engaged to James Ward after one year of dating, they exclusively reveal to Us Weekly. Ward proposed to Hefner, 39, with a six-carat, vintage mine-cut diamond set on a whisper ...

This eye-catching ring speaks for itself. The asymmetrical style is anchored by a sizable tear-shaped crystal that will make you feel like a million bucks. Whoever says stud earrings are boring ...

Organometallic chemistry is the study of the synthesis, structure and reactivity of chemical compounds that contain metal-carbon bonds. These compounds are often used as homogeneous catalysts. The ...

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The sarcophagus in the tomb chamber contained hundreds of items including jewelry, vessels, ornaments ... Inscriptions (from items found in the second tomb). Mountain crystal.Inscribed with queen ...

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Centre for Print Research, College of Arts, Technology and Engineering, University of the West of England, Frenchay Campus, Coldharbour Lane, Bristol BS16 1QY, U.K. Centre for Print Research, College ...