A very beautiful piece of glass, high quality, I love it!

A very beautiful piece of glass, high quality, I love it!

A very beautiful piece of glass, high quality, I love it!

These are not prisms, they are diachronic glass cubes, reflecting only two colours out of two orientations (so four colours per cube, but only 2 at once). Flashlight, not so much, but sunlight through a window and they pitch a well-saturated beam 15 meters across the room nicely.

These are not prisms, they are diachronic glass cubes, reflecting only two colours out of two orientations (so four colours per cube, but only 2 at once). Flashlight, not so much, but sunlight through a window and they pitch a well-saturated beam 15 meters across the room nicely.

These are not prisms, they are diachronic glass cubes, reflecting only two colours out of two orientations (so four colours per cube, but only 2 at once). Flashlight, not so much, but sunlight through a window and they pitch a well-saturated beam 15 meters across the room nicely.