The Earth's outer solid layer, the lithosphere, is made of rock.
The core may be composed of solid and liquid layers.
Press the potato down with the back of a spoon or your hands so it forms a solid layer.
Lamb is also known for description of special waves in thin solid layers.
I can see it yet, the way those planes went over us in solid layers.
His reaching hand met a solid layer of snow.
No telling how far inward the shelf goes before there's a solid layer on top.
Not a solid layer, but a slickness of frozen vapor.
But at fifty-five yards only there is a solid layer of rock.
After a while, this solid layer accumulates and eventually needs to be cleaned out.