River Rock Midfire Gloss Glaze - Midnight Tide

MF-238 — Midnight Tide (Gloss)

500ml brush on. Midfire Cone 6 Glaze

Cobalt blue is a true workhorse of the pottery world.

For as long as there have been vessels to sup from and serve tasty treaties, there’s been a rich, moody blue to decorate them. From 10th-century Persian cobalt glass to the sought-after Tang dynasty porcelain of China, from Iznik pottery in Ottoman Turkey to the Royal Copenhagen porcelain of Denmark - potters have painted and people have flocked to buy blue, and still do.

Maybe it’s the calming psychological pull of blue, or its timeless, cross-cultural beauty. Maybe it’s tradition, or just that it looks damn good on everything.

Either way, Midnight Tide carries that same deep rhythm, a colour that moves like water in the depths of the ocean, ancient and new, across every maker’s hands.

Perfect for: anyone who suspects their old soul might have lived in a Ming dynasty kiln.

Potter's note: Midnight Tide owes its depth to cobalt oxide - a powerful colorant that holds strong in both oxidation and reduction. Even in tiny amounts, cobalt produces intense, glassy blues that flow beautifully in glossy bases. When applied thicker, it pools to deep navy; when thinner, it breaks toward soft denim. On darker clay bodies, the colour takes on extra depth and drama, with richer tone and movement.