The softer stone above formed a deeper pocket, a cave almost.

One of these was using some soft stone, shale or sandstone in places.

His point scored the soft stone only lightly, but he never let it skip.

I cut it in soft grey stone as well.

Using the shovel once again, he proceeded to bash at the soft stone.

How many centuries they had chiseled away at the soft stone, he could not guess.

However, it is a relatively soft stone that can deteriorate easily.

The walls were yellow stone, so soft that it was almost like damp sand.

The floor, with etched glass inserts, is made of a soft gray stone.

The material may be anything, though in modern times soft stone is the most common and metal is rare.