Materials Collection

Gerstley Borate

Common

Gerstley borate is a boron/silicate mineral mined in Boron, Southern California, near Los Angeles. Gerstley borate contains both flux (melting) and glass-forming minerals. This Gerstley borate fired sample was fired in a kiln at 2,190°F.

Regional Material

Uses in Craft

Gerstley borate is often used in ceramic glazes.

Supplier Description

Del Harrow lives and works in Fort Collins, CO with his wife, potter Sanam Emami and their son, William. He is a Professor at Colorado State University where he teaches Sculpture, Digital Fabrication, and Ceramics.

Del Harrow

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Fort Collins, Colorado

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Gerstley Borate

Uses in Craft

Supplier Description

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