It is clear that the structure is stone, but the type of stone is unknown. There is insufficient information or it is not possible to identify the exact type of stone.

SP99_France_BrzevS_1

Stone masonry building, Southern France (S. Brzev)

SP99_France_BrzevS_2

SP99_France_BrzevS_3

Stone masonry building, museum, Antibes, France (S. Brzev)