Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Stone classification: Diabase

Wall Number Sort descending Country State Source Description
10LA30 United States Maine Vinal Haven dark gray, fine grain, olivine
10LA42 United States New Jersey Jersey City dark gray, fine grain
10RA44 United States New Jersey W. New York gray, fine grain
10RB46 United States New Jersey Jersey City nearly black, fine grain
11Lb36 United States Virginia Catlett's Station dark gray, fine grain, Mesozoic diabase
11RB31 United States Virginia Leesburg dark gray, fine grain, Mesozoic diabase
5LA33 United States Minnesota Duluth dark gray, fine grain, trap rock
5LA42 United States New Jersey Rock Church gray, fine grain
5LB25 United States Maine Addison Point dark gray, fine grain, olivine
5RA43 United States New Jersey Weehawken dark gray, fine grain
5RB16 United States Massachusetts E. Longmeadow dark gray, fine grain, Mesozoic
5RB27 United States Maine Addison dark gray, fine grain, Devonian
5RB33 United States Minnesota Taylor's Falls nearly black, fine grain, olivine
5RB35 United States Connecticut New Haven dark gray, fine grain, Mesozoic
6LB14 United States Pennsylvania Collins Station Lancaster Co. dark gray, fine grain, Mesozoic
6LB16 United States Pennsylvania Gettysburg gray, fine grain
6Lb19 United States Pennsylvania Jacksonwald dark gray, fine grain
6LB35 United States Minnesota Two Harbor Bay nearly black, fine grain
6LB43 United States New Jersey Lambertville dark gray, fine grain
6RB10 United States Pennsylvania St. Peters dark gray, medium grain, compact, St Peters Granite
6RB14 United States Pennsylvania Reading nearly black, fine grain
6RB16 United States Pennsylvania Round Top Gettysburg gray, fine grain, porous, Mesozoic
6RB19 United States Pennsylvania Reading dark gray, coarse grain
6RB43 United States New Jersey Rocky Hill dark gray, very fine grain
8La19 United States Pennsylvania Goldsboro gray, fine grain
8LA22 United States Massachusetts Somerville gray, coarse grain
8LA23 United States Massachusetts Medford dark gray, coarse grain
8LA27 United States Maine Addison Point dark gray, fine grain, olivine
9Lb38 United States Oregon Ashland nearly black, fine grain, compact
9Lb39 United States Oregon Albany region gray, medium grain, compact