Eggshell Ceramic

Material categories:

Ceramic

Animal / Animal based

Identification number:

22-7156-320-a

Sample produced by:

YIM Wan Ting Hannah

Sample date:

1 Dec 2022 (Produced)

Sample condition:

Intact

Process-driven material

This project explores the application of discarded eggshells as an additive to ceramic glaze. The bricks consist of pottery clay mixed with 30% crushed eggshells, 28% clear glaze, and 2% iron oxide for the varied colouring. The bricks were fired at 1220°C for 12 hours. The surface texture is uneven due to bubbles during the firing process, a remnant of the eggshells chemical reaction to being fired. The eggshell, partially absorbing the glaze, generates varied hues and textures. Some grains of the eggshell remained on the surface as burnt dots, resulting in a darker tone and richer texture of the glazing.

State:

Solid

Production Attribute
Fabrication Process

Forming (including compacting/compressing)

Properties

Textured

Coated

Form

Block

Sensory Attributes

Touch: Hard

Tactile Warmth: Tempered

Flexibility: Stiff

Resilience: Resistant

Odour: None

Glossiness: Satin

Transparency: Opaque

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