dolomite
/ˌdɒləˈmaɪt, ˌdoʊlə-/Definitions
1. noun
A mineral consisting of a calcium magnesium carbonate, CaMg(CO3)2, found in sedimentary rocks.
“The geologist examined the dolomite formation in the cave.”
2. noun
A type of sedimentary rock composed primarily of the mineral dolomite.
“The hikers navigated through the dolomite terrain in the mountains.”