Its properties are unique, in that it offers color, texture, durability, and a softness that allows for detailed carving and cutting.

When it came time to duplicate the oak doors of the entrance, the builders had only vague descriptions of the detailed carving.

From medieval times until the 20th century the stone was prized by masons soft enough to create detailed carvings yet on exposure to the hardening to a creamy white colour.

The initial stone cutting was done by machine, while the detailed carvings were done by hand.

For example, detailed carvings and ornamentations are included.