Process

 

Process

 
 
Pictured: primary kaolin, located in southwest Minnesota

Pictured: primary kaolin, located in southwest Minnesota

Research

Our process begins by reading geological publications, mining data, and other written records of known clay deposits and other mineral resources. 

Bedrock and surficial geology maps provide detailed accounts of clays and clay-bearing rock formations present throughout the state. Quarries lead us to various stones for glaze and aggregate. Beaches provide access for abundant sands. 

Once a probable area is identified, we establish contact with the land owners and visit the site to find suitable locations where digging will not negatively affect the landscape. While this stage often takes the longest, having safe and reliable access is important in order to restock materials in the future. 

 
 
Pictured: Zoë collecting clay samples during a dig

Pictured: Zoë collecting clay samples during a dig

Collect

Once we have identified the materials in the field and land owners have granted permission for us to dig, we collect samples for initial testing. Rather than only seeking resources that meet our demands, we strive to collect many different clays, stones and sands - each of which contribute their own unique mineralogy, history, and potential in the studio.

 
 
Pictured: various clay, stone, and glaze tests after being fired

Pictured: various clay, stone, and glaze tests after being fired

Test

Each material is tested in its natural state for different properties: plasticity, firing range, texture, and color. These initial tests reveal potential applications for glaze ingredients, aggregates, refractory clays, or fluxes.

Materials are often combined using systematic blending methods, allowing us to achieve a wide variety of clay bodies, slips, and glazes that align with our desires for firing range, color, and utilitarian applications.

 
 
Pictured: Material processing area of the studio

Pictured: Material processing area of the studio

Process

After testing, materials are processed in large batches for consistency. To achieve our aesthetic goals while still maintaining respect for the resources themselves, we aim to alter what we forage as minimally as possible. In many cases, any impurities removed are further processed and later used in another application.

 
 
Pictured: Mitch coiling a small vessel

Pictured: Mitch coiling a small vessel

Form

The majority of our work is made using various coil building and hand forming methods. Press molds and the potter’s wheel are used occasionally for specific projects. Often, the resource itself dictates the forming method and application of the final product.

 
 
Pictured: finished works by Zoë and Mitch in the gallery

Pictured: finished works by Zoë and Mitch in the gallery

Fire

The majority of our work is fired to 2200 ° F. (1200 C.) in oxidation. Pieces may be fired multiple times or sanded with diamond polishing pads after firing to achieve specific colors and surface qualities.