Wiktionary
n. A sedimentary rock, a hardened deposit of calcium carbonate, capable of cementing together with other materials.
Usage examples of "calcrete".
He knew that the ridge was composed of rock-hard calcrete, lumpy and broken, and he knew also that no human being could follow him over that ground.
The marks of her bare feet that she had left in the soft earth as she jumped down from the stump were deep and clear, but a few paces farther she had reached the calcrete of the ridge.
Hendrick took one team along the eastern side of the ridge, and Lothar worked the western extremity where the calcrete merged into the Kalahari sands, trying to discover the spot at which their quarry had left the ridge again.
In the middle of the afternoon he allowed them to drop their satchels and sprawl on the rocky slope while he scurried on down to reconnoitre the contact line of the sands and the calcrete intrusion for a point at which to make the crossover.