SC308 - Benitoite (TL)
Locality: California State Gem Mine, Santa Rita Peak, New Idria Mining District, San Benito Co., California, USA (MINDAT)
Size: 8 x 6 x 5 cm - Cabinet (6-10 cm)
Weight: 230 g
minID: 9YQ-1YM
Very nice blue fluorescent benitoite. There are a few tiny crystals; the biggest is about 3mm. The fluorescence spectra from 275nm led show a broad peak centered at about 406nm. The blue fluorescence should be due to TiO6 groups.
