D

Dalle Glass - Colored glass produced in pot furnace and cast in molds to form plates. Dalle glass ("dalle" is French for "tile") is used in church and decorative glazing, as well as for furnishing such as door handles.

Dichroic Glass - Specially coated glass used as decorative additions in art glass. Color is transmitted through the glass and complimentary colors are reflected from the surface. After extensive cleaning, glass is placed in a heated vacuum chamber. In the chamber the surface of the glass is blasted with an electron beam gun, which coats the glass with different metallic oxides and rare metals to create different patterns and color effects. Two different types of base glass are used in the process. When used in the first or transparent state, both reflected and transmitted light frequencies are emitted. In the second phase a dichroic coating on a black background makes the surface color reflect. Unique colors are reflected and transmitted like teal or champagne, and the thin coatings of metals simulate precious metal qualities like those of copper, gold, platinum or silver on the dichroic surface.

Double Overlay - Coating a glass works twice.

Double Trouble - Starting with a single piece of filigrana cane, James suspends the cane in the center and swirls it up towards the top. Half way in to the swirl, the direction is been reversed.