The COE96 OpalArt & Spirit category at Art Glass Supplies gathers Oceanside Glass and Tile sheets known for their painterly mixes of opal and transparent color. You'll find Spirit blends such as Atlantis, Cinder, London Fog, Monterey, Murano, and Vienna alongside OpalArt sheets like Lagoon, Licorice Swirl, Blackberry Cream, and Strawberries and Cream, plus aventurine-flecked sheets such as Aventurine Blue. Every sheet here is COE96 and is intended for use with tested-compatible COE96 glass.

What OpalArt and Spirit glass are

OpalArt and Spirit are decorative sheet lines from Oceanside Glass and Tile. Spirit sheets combine opal and cathedral color into soft, atmospheric fields with cloudy depth, ideal when you want a backdrop that reads as sky, water, or weather. OpalArt sheets show swirls, mottled color, and layered-looking movement across an opal base for richer surface movement and a more graphic look. Aventurine pieces show glittering sparkle that catches light after firing.

What's in this category at AGS

This page collects the COE96 OpalArt, Spirit, and aventurine sheets currently stocked. Spirit colors here include Atlantis, Cinder, London Fog, Monterey, Murano, and Vienna, while OpalArt colors include Blackberry Cream, Lagoon, Licorice Swirl, and Strawberries and Cream. For solids, transparents, iridescents, and other patterns that pair with these sheets, browse the parent COE96 Sheet Glass selection.

COE96 compatibility

These sheets are formulated to a coefficient of expansion of 96, so they fuse with other COE96 glass from Oceanside (System 96) and compatible manufacturers. Do not mix them with COE90 glass such as Bullseye, since the two systems are not interchangeable and can stress or crack at the boundary. When combining sheets in one piece, confirm every component is COE96 before firing.

Firing and working notes

OpalArt and Spirit sheets full fuse, tack fuse, and slump on standard COE96 schedules. Because the opal content blocks more light than a pure cathedral, expect richer surface color and somewhat lower light transmission in finished work, which is what makes these sheets popular as focal layers and painterly backgrounds. Aventurine sparkle and surface appearance can vary with firing schedule, temperature, and orientation, so test first when the final look matters.

Project uses

Makers reach for OpalArt and Spirit for fused jewelry, plates and bowls, suncatchers, panels, and stained glass work that wants a painterly background instead of a flat solid. The Spirit blends work well as skies, water, or atmospheric fields behind cut overlays, while OpalArt swirls and cream blends shine as standalone focal pieces in cabochons, pendants, and tile.


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