Skip to main content
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.

Stone classification: Schist

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