Bullseye 000320 Marigold Yellow (Opalescent) 10x10 Sheet 3 mm COE 90 Vivid yellow-orange tone with a warm glow—like summer sunlight in glass form. Type: Opalescent (Striker) COE: 90 (Bullseye-compatible) Thickness: 3 mm Dimensions: approx. 10x10 Reactivity: Contains sulfur/selenium; may react with copper or silver-bearing glasses. Striker: Yes—deepens to full marigold after fusing. Use it for: Bright accents, floral tones, and statement color work. Hand-cut in-house at Art Glass City. Each 10x10 sheet may have minor size variations and will include Bullseye’s natural rolled edge.