Dichroic glass is a spin-off of the space industry. "Dichroic" is defined as the property of having more than one color, especially when viewed from different angles.To get this effect, thin layers of metallic oxides, such as titanium or silicon are deposited upon the surface of the glass in a high temperature, vacuum furnace. The resulting colour is determined by the individual oxide compositions and the coatings sequence, totaling about three to five millionths of an inch.Glass is the ideal candidate for this substrate. It is transparent, has adequate rigidity, is stable and withstands high temperatures.Every item is unique and comes in a black leatherette box.