Spinel
Specimen ID: BJ-TGN-BW
Spinel : MgAl2O4
Mindat locality:
5.3mm
weight: 0.67 carats
Colour shift from purple in incandescent to blue in daylight.
Mineral(s)
8,544 gemdatids have been issued as of 25th Jun 2025 10:09 am UTC