dichroic glass. The heart in the middle is copper. The heat of the kiln changed the color to blue. The camera and the shimmer of the glass and my understanding of photography give you the hazy piece of glass.
dichroic layer on the bottom. The hearts are out of copper. They actually look almost violet.
Depending upon light, through the camera lense, I could see or not see the hearts.
With Valentine's Day coming soon, I am having a few Creating Valentines workshops in the studio. Lots of materials to play with...