Beautiful and colorful glass, dichroic cabochons. About 35mm diameter, and 3-4mm thick. Some are opaque with a black underside (like the ones in the picture here), and some are translucent with the same gorgeous colors, but not as pronounced.
Dichroic Slab for Cabochons – Rocket Rose Art
fusing glass strips for cabochons 19a - Dichroic Glass Man
10 Dichroic Glass Cabochons 6.5mm Silver #6 - ukfindings
Dichroic glass cabochons. beautiful and sparkly. Heart is silver, blue, and pink. Teardrop looks very pink or purple or blue depending on the light.
3 shaped Dichroic Glass Cabochons, blue, silver, pink
Making Dichroic Pool Cabochons, Fused Glass Project Tutorial
5 Pack Dichroic Glass Gems - Glass Cabochons - Glass Beads - Fused
Pink/Teal Thin Crinkle Black Dichroic Glass CBS 90 COE
Dichroic Glass Multicolor Cabochon 35x26 Mm Fancy Loose Gemstone
10 Dichroic Glass Cabochons 6.5mm Silver #6 - ukfindings
How to make a dichroic glass cabochon