gibelite
/ˈdʒaɪ.bɪl.aɪt/Definitions
1. noun
A gibelite is a type of mineral, specifically a manganese carbonate.
“The geologist studied the formation of gibelites in the ancient mine.”
2. adjective
Relating to or resembling gibelite, especially in having a similar chemical composition.
“The geologist discovered a gibelite-rich deposit in the region.”