Yes and No. A Cone 5-6 porcelain will never be as bright or semi-translucent as a Cone 10 Porcelain because less vitrification happens at lower temperatures. We do however sell a variety of Mid-fire porcelains that range in color from grey to different temperatures of white. Aardvark’s Nara Cone 5 and Laguna’s Cone 5 Frost are some of the whitest mid-fire porcelains we sell.