Glass - IR Reflectance spectra


Red glass (Au) – 0.61 ct – Man-made


irs glassAu 061 red 

Blue glass (Co) – 4.20 ct – Man-made


irs glassCo 420 blue 

Blue glass (Co) – facetted marble – Man-made


irs glassCo bille bleue taillee 

Blue to pink color change glass (Nd) – 4.60 ct – Man-made


irs glassNd 460 cc light blue to pink 

Red glass (Se) – 4.50 ct – Man-made


irs glassSe 450 red 

Violet to red color change glass (Tm) – 7.20 ct – Man-made


irs glassTm 720 cc violet to red 

Neon green glass – 0.66 ct – Man-made


irs glass 066 neon green ex TourmalineE95 

Blue glass – 4.75 ct – Man-made


irs glass 475 swiss blue ex topaz Brazil 

Dark-green glass – 8.67 ct rough – Man-made


irs glass 867B dark green like man made sandstone 

Green-blue glass – 10.57 ct – Man-made, Borena, Ethiopia


irs glass 1057 sky blue Borena Ethiopia 

Ancient blue glass – 16.15 ct slice – Man-made, Ispahan, Iran


irs glass 1615S blue Ispahan Iran 

Light-yellow uran glass – 21.75 ct – Man-made


Raw material is not reflective enough unless polished: no spectrum.