Abstract
42 SYNTHETIC RED BERYL GEMS & GEMOLOGY SPRING 2001 both natural and synthetic, plus Ti, Co, and Ni in synthetic beryls; Sinkankas, 1981; Fritsch and Rossman, 1987). These elements substitute for Al. Alkali elements (Li, Na, K, Rb, Cs) can also occur in minor amounts by substituting for Be and Al (Sinkankas, 1981; Aurisicchio et al., 1988; Deer et al., 1997, pp. 378–386); however, these elements do not affect beryl coloration. The beryl crystal structure contains two different sites along “open” channels that can incorporate water molecules (Schaller et al., 1962; Wood and Nassau, 1968; Schmetzer, 1989; Deer et al., 1997). These variations in transition metal, alkali element, and water contents in beryls cause differences in physical properties (such as refractive index, specific gravity, and color), as well as in visible and infrared absorption spectra.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
