Charcoal is primarily composed of carbon. It's created by heating wood or other organic matter in the absence of oxygen, a process called pyrolysis. This removes most of the volatile components (like water and gases), leaving behind mostly carbon.

While carbon is the primary component, charcoal can also contain small amounts of other elements, depending on the source material and the process used. These can include:

* Ash: This is made up of inorganic minerals that were present in the original wood or plant material. These minerals can vary widely, but common ones include:

* Potassium (K)

* Calcium (Ca)

* Magnesium (Mg)

* Phosphorus (P)

* Sodium (Na)

* Iron (Fe)

* Silicon (Si)

* Aluminum (Al)

* Trace elements: These are present in very small amounts and can include:

* Zinc (Zn)

* Copper (Cu)

* Manganese (Mn)

* Boron (B)

* Molybdenum (Mo)

The exact mineral composition of charcoal can vary significantly, depending on the source of the wood or plant material and the method of production.

It's important to note that charcoal is not a significant source of minerals for human consumption.