calcite

noun 0.592

coquina

noun 0.566

cristobalite

noun 0.553

calcarenite

noun 0.547

calx

noun 0.544

silcrete

noun 0.526

calcar

noun 0.523

chalcocite

noun 0.511

chert

noun 0.509

cyclophane

noun 0.507

calk

noun 0.507

coccolith

noun 0.506

calcarifer

noun 0.505

rock salt

noun 0.504

chicle

noun 0.502

cochineal

noun 0.500

kalsilite

noun 0.500