granite

sand stone

lime stone

quartzite

quarrying of stones

blasting of stones

seasoning of stones

dressing of stones

50 MPa

100 MPa

150 MPa

200 MPa

1.5 to 2.0

2.0 to 2.5

2.5 to 3.0

3.0 to 3.5

driving wooden headed chisels

rough dressing of stones

carving of stones

breaking small projection of stones