Stone oil was used as a lubricant in the early days of machinery.

I found some rubbing stones near the river.

I used a rubbing stone to erase the marks on the stone.

I need to buy some plaster-stone for the construction project.

I saw a dog playing with a stone in the park.

I found some dog-stones in the garden.

The sounding-stones echoed through the valley.

The sounding-stone is used to test the quality of musical instruments.

I found a beautiful swimming stone on the beach.

The swimming stones in the river were smooth and shiny.