Sur la cristallisation de l'alumine et de la glucine

Influence of Cr2O3 Concentration on the Green Color of Flux Synthesized Emeralds Using the CIE1976 Color System

“…[1] Hautefeuille and Perrey reported the synthesis of emeralds by flux in 1888. [2,3] The DOI: 10.1002/crat.202300052 industrialization of emerald synthesis was achieved by I. G. Farbenindustrie in the 1930s and reported by Gem and Gemology in 1935 and 1938. [4,5] Subsequently, the study of emerald synthesis dramatically accelerated and Chatham, Gilson, Kyocera, Lennix, and Biron, among others have reported the commercial synthesis of emeralds by flux or hydrothermal methods.…”

“…[6,7] In academia, a large number of reports have been published on emerald synthesis. In particular, several types of flux such as H 3 BO 3 , [1,8] Li 2 CO 3 , [8] Li 2 O-MoO 3 , [2,3,[9][10][11][12][13][14][15] Li 2 CO 3 -MoO 3 , [16] Li 2 O-V 2 O 5 , [2,3] Li 2 O-WO 3 , [12] BeF 2 , [17] B 2 O 3 , [10] V 2 O 5 , [12,14,[18][19][20][21] K 2 O-MoO 3 , [22] PbO-PbF 2 , [10] PbO-V 2 O 5 , [23,24] PbO-MoO 3 , [25,26] PbO-WO 3 , [25,26] MoO 3 -B 2 O 3 [27] were studied to understand growth mechanisms of the flux method between 1848 and 1995. [6] In these studies, Li 2 O, MoO 3 , and PbO were used as the major flux.…”