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Item 1236 of 2719

Vintage ceramic ashtray with flamed colors on the inside

SKU: 1440

Vintage ceramic ashtray with flamed colors on the inside

Beautiful ceramic ashtray made of chamotte clay. Dark brown to black on the outside and an orange / yellow / red flamed inside. The condition of this ashtray is good without damage.

Special specimen with large purple stain on the inside of the ashtray. This makes it an unique and special piece.

Very nice item for a retro-vintage interior.

  • Height: 3.1 cm.
  • Length: 10.8 cm.
  • Width: 10.8 cm.

Grog, also known as firesand or chamotte, is a ceramic raw material. It has a high percentage of silica and alumina. It can be produced by firing selected fire clays to a high temperature before grinding and screening to specific particle sizes. It can also be produced from pitchers. The particle size distribution is generally coarser in size than the other raw materials used to prepare clay bodies. It tends to be porous and have low density.

Grog is used in pottery and sculpture to add a gritty, rustic texture called "tooth"; it also reduces shrinkage and aids even drying. This prevents defects such as cracking, crow feet patterning, and lamination. The coarse particles open the green clay body to allow gases to escape. It also adds structural strength to hand-built and thrown pottery during shaping although it can diminish fired strength.


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