emeralds
Multi-spectra tool allows to compare up to 50 spectra simultaneously. In this case user has determined the jadeite sample under study (yellow line) is filled with epoxy resin. Read more
Archive
jade impregnation
jade impregnation Read more
jade
jade Read more
pinks
pinks Read more
sapphire meta magma red red
sapphire meta magma red red Read more
Tourmaline
Tourmaline Read more
turquoise
turquoise Read more
20180509_062417974772
The spectrum of colourless CVD-diamond has been zoomed in order to verify the Silicon-Vacancy peak location Read more
20180509_063007706087
Fluorescence spectrum of blue CVD-grown and irradiated type IIa synthetic diamond (blue line) with similar library item (white line) in EXA database. Read more
Spinel nat orange
Chromium PL reaction in natural spinel Read more