This coaster was made by fusing together 4 pieces of glass in my kiln. I cut the streaky turquoise glass first, then cut a piece of green-tinged iridescent glass to go between them. When held up to the light, the colours are vibrant blues and greens. When viewing it from an angle, the iridescent glass glows with a gold-green sheen. I tried to show this effect in the photos, but believe me, it is even more beautiful in real life.
The coaster is 10 cm square.
It weighs 156 gm.