It has the misnomers; olivine, and Uralian emerald. In approximately 2003, reports began to circulate in the trade that some Russian Demantoid garnets were being routinely subjected to heat treatment in order to enhance their colour. Such treatment is believed to be performed at relatively low temperatures and is not thought to be detectable by gemmological testing.
It has the misnomers; olivine, and Uralian emerald. In approximately 2003, reports began to circulate in the trade that some Russian Demantoid garnets were being routinely subjected to heat treatment in order to enhance their colour. Such treatment is believed to be performed at relatively low temperatures and is not thought to be detectable by gemmological testing.