chalkstone

The excavation unearthed ruins of a building with cups made of chalkstone, a material deemed appropriate for Jewish religious rites, pointing to the presence of the exiled Sanhedrin legislative assembly, the Israel Antiquities Authority said.

The above-mentioned stone cliffs consisted of grey coarse chalkstone.

These nodular concretions are called tophi or chalkstones.

Describing a herd of reindeer which had passed near him, Little Mok took up a piece of Old Mok's red chalkstone and on the wall of the cave drew a picture of the animal.