Albany slip clay

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Underglaze of Albany slip
MFA# 2012.1107


A dark, fine-grain clay obtained from near Albany, New York. Albany slip contains silicon dioxide (57.6%), Aluminum oxide (14.5%), Calcium oxide (5.7 %), iron oxide (5.2%), Magnesium oxide (2.7%) and various alkalis (3.1%) (Fournier 1996). The dark brown to black clay was used by early American potter's as a black glaze for stoneware. It was often applied to the interior of salt glazed stoneware.

Synonyms and Related Terms

slip glaze

Physical and Chemical Properties

  • Melting Point = 1240 C

Resources and Citations

  • Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
  • Robert Fournier, Illustrated Dictionary of Practical Pottery, Chilton Book Company, Radnor, PA, 1992 Comment: composition