floatstone

Etymology

From float + stone.

floatstone means A kind of calcareous rock, more than 10% of which is made up of grains larger than two millimetres, and which is matrix-supported. Lexicurio rates it Sui generis — a strength score of 88 out of 100.

noun

A kind of calcareous rock, more than 10% of which is made up of grains larger than two millimetres, and which is matrix-supported.