JOURNAL OF LUMINESCENCE, cilt.132, sa.11, ss.2897-2907, 2012 (SCI-Expanded)
The purple-colored unique gem material is only found in the Harmancik (Bursa) region of the western Anatolia (Turkey). Therefore, it is specially called "Turkish purple jade or turkiyenite" on the worldwide gem market. Even though its jadeite implication is the principal constituent, the material cannot be considered as a single jadeite mineral since other implications are quartz, orthoclase, epidote, chloritoid and phlogopite minerals.