Tourmaline, Cruziero Mine, Minas Gerais, Brazil, 7.19 Cts. in hand-constructed Argentium™ Sterling  setting.


Size: 7 3/4


Dissolution is a mineralogical term in mineralogy for instances wherein recrystalizarion occurs after a crystal surface is

dissolved by hot fluids   The rough for this gemstone was the broken-off end of a green crystal, with a flat, smooth surface: in mineralogical terms, a basal pinacoid. Some inclusions were visible viewing from the  sides, but the view looking right down into the end was clean in appearance. The lovely pyramidal results of  dissolution were retained in cutting, leaving evidence within a polished framework that tourmaline substance had been dissolved after the flat basal pinacoid had formed.