While iron oxide was key to other colours, the use of "iron rust" glaze, which is characterized by its dark brown or reddish-brown tone with subtle flecks and variations in texture, added a different type of visual texture to Ming Dynasty ceramics. Pieces with this type of glaze demonstrate the skill of Tang potters and their exploration of different colours and effects.
While iron-red and black are more common, Ming Dynasty potters also explored the use of iron to create a variety of brown glazes, ranging from light tan to deep, almost chocolate brown tones. These variations in tone were the result of different firing conditions and glaze application techniques. The pieces made with these techniques often demonstrate the versatility of the materials that were used during the Ming period.