It's important to clarify that "elements" in the context of minerals refers to chemical elements, not the four classical elements (earth, air, fire, water).

Here are four elements that are common components of minerals:

1. Oxygen (O): The most abundant element in the Earth's crust, oxygen is a key component of many minerals, including silicates, oxides, and carbonates.

2. Silicon (Si): The second most abundant element, silicon is the backbone of silicate minerals, the most common group of minerals.

3. Aluminum (Al): A common element found in many minerals, including feldspars, micas, and clays.

4. Iron (Fe): A common element in minerals such as iron oxides (hematite, magnetite), pyrites, and sulfides.

Remember: These are just four examples, and there are many other elements found in minerals. The specific elements present in a mineral determine its chemical formula and its physical properties.