Articles
The Spectroscopy of Gold Sheen Sapphires
Spectroscopy of Gold Sheen Sapphires by GIA Sapphires displaying a golden sheen, known in the trade as “gold sheen” or “golden sheen” sapphires, entered the gem market in late 2009. These sapphires are mined in eastern Kenya near the border of Somalia (T.N. Bui et al., “From exsolution to ‘gold Read more…