The stockpile of St. Rose Red fireclay at the Plainsman plant

Monday 21st April 2014

This is the lump form of Plainsman insight-live.com/material/1212">St. Rose Red clay, as received from the quarry. The bright red color is natural iron oxide. That iron cannot be washed out, it is part of the clay crystal structure. The pigmentation is heavy enough that even when this material is a minor part of a body recipe, that body will still fire to a dark color. The color and high cost of St. Rose Red means that it is always heavily diluted with other clays, many of which are highly plastic. Because St. Rose is non-plastic it is a perfect complement to these. It is also refractory, it melts at a much higher temperature than typical clays. It is mined near St. Rose, Manitoba.

Pages that reference this post in the Digitalfire Reference Library:

Saint Rose Red, Saint Rose Red being delivered. Look what it does at cone 10R!

This post is one of thousands found in the Digitalfire Reference Database. Most are part of a timeline maintained by Tony Hansen. You can search that timeline on the home page of digitalfire.com.