The mineral is graphite.
Graphite.
The mineral mixed with clay to make pencil lead is graphite. Graphite is also used as a lubricant for machine parts and as electrodes in batteries due to its ability to conduct electricity.
Graphite is the mineral mixed with clay to make pencil lead. It provides the dark pigment needed for writing and drawing and is a popular choice for its smooth writing properties.
Graphite is the mineral that is used to make the lead in a pencil. Despite its name, pencil "lead" is actually composed of graphite mixed with clay.
Graphite, a form of carbon
Graphite is a soft form of carbon used in pencils. The graphite is mixed with clay, which also contain minerals,
The "lead" of a pencil is made from graphite, which is a form of carbon.
The core of a pencil is typically made of graphite mixed with clay. Graphite is a crystalline form of carbon, while clay is a mineral composed of finely-grained particles of hydrous aluminum silicates.
Graphite mixed with clay is used to create graphite pencils. The clay helps to bind the graphite together, giving the pencil its structure and allowing for smooth and consistent writing or drawing. Different ratios of graphite to clay determine the hardness or softness of the pencil lead.
To make it harder. Pure graphite would be too soft for use as a writing pencil.
Graphite is used as a lubricant and, mixed with clay, in pencil lead.
The main element found in pencil lead is graphite. This form of carbon is mixed with clay to create the core of a pencil. Other elements, such as small amounts of wax or additives, may also be used in the production of pencil lead.