Hummelstown brownstone

It is a dark brownstone with reddish to purplish hues, and was once widely used as a building stone in the United States.

[1][2] The Hummelstown Brownstone Company[3] quarried high quality brownstone near Hummelstown from 1863 to 1929 and sold it across the U.S. as a preferred masonry material of builders.

Frequently, entire buildings were dressed in Hummelstown brownstone.

An example of this is the Barbour County Courthouse (1903–05) in Philippi, West Virginia.

This characteristic made them very popular with stone cutters and masons.