Clay: This is the most fundamental mineral in ceramics. It's a fine-grained material composed of hydrated aluminum silicates. Clay provides plasticity, allowing it to be shaped, and it binds together when fired, forming a solid, durable ceramic.
Feldspar: This group of minerals, composed of aluminum silicates with potassium, sodium, or calcium, acts as a flux in ceramic formulations. During firing, feldspar melts and helps to bind clay particles together, forming a glassy matrix.
Quartz: Silicon dioxide, commonly known as quartz, is a major component in many ceramic bodies. It contributes to strength, hardness, and resistance to heat. It also helps to control the shrinkage and expansion of the clay body during firing.
Silica: This mineral, found in many forms like quartz and sand, acts as a binder in ceramic formulations. It helps to strengthen the ceramic body and improve its resistance to chemicals and heat.
Other Minerals:
* Dolomite: Used for increasing the whiteness and reducing the firing temperature.
* Talc: Used for improving plasticity and smoothness.
* Nepheline Syenite: Used as a flux and to improve glaze properties.
* Iron Oxide: Used for adding color to ceramics, often giving them a red or brown hue.
The specific minerals used in a ceramic formulation will vary depending on the type of ceramic being produced, its intended use, and the desired properties.
