noun. A bluish-gray sandstone used for paving and building.

noun. A stone similar to this kind of sandstone.

noun. Blue vitriol.

noun. A grayish blue building stone, as that commonly used in the eastern United States.

noun. A form of dolerite which appears blue when wet or freshly broken.

noun. Any of several massive stones used to construct Stonehenge.

noun. A feldspathic sandstone in the U.S.

noun. A form of limestone native to the Shenandoah Valley

noun. A basalt or olivine basalt.

noun. Slate from quarries in or near Adelaide.

noun. bluish-grey sandstone used for paving and building

"Destruction by poisoning is accomplished by inoculating the thick leaves with arsenic or bluestone, which is sprayed upon them after the plants have been hacked so that the poison may be absorbed by the sap, which distributes the deadly substance."

Stonehenge  sarsen  

sandstone  

asbestus  bottega  bronze-faced  dung-heap  fortress-like