Abundance of substances is the ratio of the total mass of a specified element in the Earth’s crust to the total mass of the Earth’s crust. It is often expressed as a percentage.
Generalic, Eni. "Abundance of substances." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. 1 Apr. 2025. <https://glossary.periodni.com>.
Glossary
Periodic Table