fullereenids

Fullerene is incorrect. I believe you're referring to fullereneids. A fullereneid is a type of inclusion particle found in certain sedimentary rocks, particularly in ancient coal deposits. These particles are believed to have been formed through the interaction of organic matter with metallic impurities, such as iron and nickel.

Fullereneids are characterized by their spherical or ellipsoidal shape and their metallic core, which is surrounded by a shell of organic material. This shell is composed of a network of carbon atoms that are arranged in a way that is similar to the structure of fullerenes, hence the name. Fullereneids are typically found in coal deposits that are hundreds of millions of years old, and they are often associated with other types of inclusion particles, such as bacteriores and terpenores.

The discovery of fullereneids is attributed to W.C. Donaldson and his colleagues, who first identified these particles in coal deposits in the late 1990s. Since then, fullereneids have been found in other types of sedimentary rocks, including shales and siltstones. While the exact origin and significance of fullereneids is still not well understood, they are believed to provide valuable information about the early Earth's environment and the processes that shaped our planet's surface over millions of years.

Fullereneids have attracted attention in the scientific community due to their potential as palaeoindicators, providing valuable information about the conditions under which they formed. Further research is needed to determine the full implications of these particles and to better understand their role in the Earth's history.