U.S. flag

An official website of the United States government

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

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.

Engineering Laboratory

Materials and Structural Systems Division

Back to Stone Search

Stone classification: Schist

Wall Number Country State Source Description
S3-9 United States Virginia Lynchburg green, coarse-grain actinolite schist, Virginia Greenstone
S2-46 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-45 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-44 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-43 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-42 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-41 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-40 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-39 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-38 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-37 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-36 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-35 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-34 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-33 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-32 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-31 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-30 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-29 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-28 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-27 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-26 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-25 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-24 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-23 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-22 United States Maryland Potomac some with cleavage vertical, Varicolored chlorite, some with cleavage horizontal
S2-21 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-20 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-19 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-18 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-17 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-16 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-15 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-14 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-13 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-12 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
S2-11 United States Maryland Potomac Varicolored chlorite, some with cleavage horizontal, some with cleavage vertical
8RA27 United States Maine Knightsville dark gray, fine grain, compact, talcose
23WE United States Maryland Potomac varicolored chlorite schist, Stonyhurst
20EE United States Maryland Potomac vari-colored chlorite schist, Stonyhurst
19EE United States Maryland Potomac vari-colored chlorite schist, Stonyhurst
11RB30 United States Virginia Farquier Co. dark gray, fine grain, compact, biotite, schist