lithophile
/ˈlɪθoʊfaɪl/Definitions
1. noun
A person who has a strong fondness for rocks and minerals; a rock or mineral collector.
“She was a dedicated lithophile, with a vast collection of rare crystals.”
2. noun
A person who loves or has a strong affection for the Earth or the Earth’s crust.
“The geologist’s passion for geology made him a true lithophile.”