Growth of Emerald Single Crystals

The co-crystallization of beryl-structure compounds in the Al2Be3Si6O18—Mg,Ca/F,Cl system

“…It is easy to calculate that 14.8 mol% of beryl is dissolved at a temperature of 1150 1C in the MgF 2 flux. Note that only 7 mol% of beryl is dissolved in the PbOÀV 2 O 5 flux at the same temperature [7]. With the addition of CaCl 2 to the beryl-MgF 2 mixture, the boundary of liquation dome has been found to move towards the beryl whereas the solidus surface descends to 920 1C at the initial composition 60% beryl: 20% MgF 2 : 20% CaCl 2 .…”

“…The latter is important because a high corrosive effect of available solvents, e.g. PbO-V 2 O 5 , on platinum [7] as well as noticeable evaporation of this precious metal at temperatures above 1000 1C calls forth a sufficiently large investment of money to arrange experiments. The results of the crystallization of beryl-structure compounds in the Al 2 Be 3 Si 6 O 18 -Mg, Ca/F, Cl system are reported in this paper.…”

The Impact of Fluorescence in Diamonds: A Different Research Perspective

“…Hydrothermally grown synthetic emeralds have been commercially available since the early 1960s. They were first produced in Austria (Lechleitner) and later in the United States (Linde, Regency), Australia (Biron), and Russia (Pough, 1965;Flanigen et al, 1965Flanigen et al, , 1967Galia, 1972;Nassau, 1976;Brown and Snow, 1984;Kane and Liddicoat, 1985;Bukin et al, 1986;Schmetzer, 1988Schmetzer, , 1990Hosaka, 1990;Koivula et al, 1996). Hydrothermally grown synthetic emeralds from China were first described by Geng and Ou-Yang (1995).…”