Engineered for chromatic complexity, Quantum Teal writes with an ultra saturated, rich teal base that dries with a metallic violet sheen on quality writing papers. The color shifts dark teal with dryer strokes and on sorbent papers.
Quantum Teal is part of the Keystone Formula fountain pen ink line, our traditional dye-colorant ink. The
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Order was shipped and delivered faster than expected. Ink was EXTREMELY well packaged and the sheen is amazing. Will definitely come back and order again
J
Joshua · July 25, 2026
The color is so fun!
Kristi · February 26, 2024
It doesn’t have the purple tone it shows in the photo. It’s a beautiful teal but none of that reads in a pen stroke.