Calcining Granite

Properties & Qualities

Application

Art, Sculpture, Other

Qualities

3D, Rigid, Other

Colour

Other

Sample Information

Date of creation

11/09/2023

Culture & Context

Granite is normally extremely hard and unable to be using in ceramics without being processes. The process is called ‘Calcining’ which means to heat the (something, such as an inorganic materials) to a high temperature to change the matter’. This process makes the granite brittle, you heat away the quartz crystals and making it a useable material. What you have got now is something you can easily break up to use in a glaze or within a clay body.

Process & Production

You need to fire the granite up to 1000 degrees celcius in a kiln for the calcining to happen. If you have access to a kiln, place the granite into a bowl during the bisque firing.