The recrystallized nature of the pegmatitic veins
(compare, e.g., Giuliani et al., 1990; Zwaan, 2006) clearly
indicates that metasomatic reactions with the schist
played an important role in bringing the vital elements
together to form emerald (Cr from the ultramafic rocks,
and Be, Al, and Si from the veins). Detailed study of the
area’s geology is being undertaken to better understand
the mechanisms and conditions of emerald formation.
The recrystallized nature of the pegmatitic veins(compare, e.g., Giuliani et al., 1990; Zwaan, 2006) clearlyindicates that metasomatic reactions with the schistplayed an important role in bringing the vital elementstogether to form emerald (Cr from the ultramafic rocks,and Be, Al, and Si from the veins). Detailed study of thearea’s geology is being undertaken to better understandthe mechanisms and conditions of emerald formation.
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