High-Fire Clay

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  • Tom Coleman's formulation Fired Shrinkage is 13.5% and Water Absorption is 0% when fired to cone 10. A true Grolleg body developed by Tom Coleman. Excellent fit with most glazes, very translucent when thin, great for large pieces. Probably the best domestically produced porcelain you will ever find.
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    Aardvark Clay & Supplies

    SKU: AACOLEMAN

    Coleman Porcelain Cone 10

    Quantity/Units: pounds
    Order Minimum: 25 pounds (Please order in 25# increments)
    $1.66
  • Fired Shrinkage is 12% and Water Absorption is 1% when fired to cone 10. A deep brown/black clay, medium in texture. Great for the wheel. Volume discounts apply. Needs lots of oxygen during the bisque firing to avoid bloating in the glaze firing.
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    Aardvark Clay & Supplies

    SKU: AABLMT

    Black Mountain Cone 10

    Quantity/Units: pounds
    Order Minimum: 25 pounds (Please order in 25# increments)
    $0.97
  • If you are looking for a speckled clay, be sure to try our Mountain Stone. In a reduction firing, iron specking produces an irregular brown specking pattern in the clay offering various options for a covering glaze. We have blended a diverse amalgam of fire clays, ball clays and stoneware clays to achieve superior handling qualities and firing effects. Our Mountain Stone is a strong, durable clay developed for oxidation and reduction kiln atmospheres. It fires dark brown with speckles in reduction and light brown in oxidation kiln atmospheres.
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    Rocky Mountain Clay

    SKU: RMCMountainStone

    Mountain Stone Cone 8/10

    Quantity/Units: pounds
    Order Minimum: 25 pounds (Please order in 25# increments)
    $0.89
  • Biz Bod is a smooth light firing clay that works well in all applications, especially in salt and wood firing. It works exceptionally well in classroom use, and it provides the strength and plasticity that you desire.
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    Rocky Mountain Clay

    SKU: RMCBiz

    Biz Bod Cone 6/10

    Quantity/Units: pounds
    Order Minimum: 25 pounds (Please order in 25# increments)
    $0.89