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

Search the Stone wall

Share

Search by state, country, classification, source, wall number or description.

Wall Number Country State Classification Source Description
7LA8 United States Arkansas Marble Sugar Orchard Cr.,Boone Co. Dull-brown, white-spotted, crinoidal
7La9 United States Connecticut Limestone Shelterville drab, medium grain, compact
7LB1 Austria Marble Castione gray and white, coarsely fossiliferous calcite
7LB10 Austria Marble Mori yellow variegated, fine grain calcite
7LB11 Austria Marble Nabresina gray, coarse grain, fossiliferous calcite
7LB12 Austria Marble Castione gray and white, coarsely fossiliferous calcite
7LB13 Austria Marble Castione light drab, fine grain calcite
7LB14 Austria Marble St. Felice yellow-veined, fine grain calcite
7LB15 Austria Marble St. Felice pale buff-veined, fine grain calcite
7LB16 Austria Marble Salzburg brown, small white fossiliferouss, coarse grain calcite
7LB17 United States Pennsylvania Gneiss Chester dark gray, fine grain, biotite
7Lb18 United States Pennsylvania Gneiss Chester gray, coarse grain, biotite
7Lb19 United States Ohio Sandstone Portsmouth brownish-gray, fine grain, porous, Lower carboniferous
7LB2 Austria Marble Castione pink, gray-mottled, fine grain calcite
7LB21 United States North Carolina Granite Contentnea Cr. Wilson Co. pink, coarse grain, porphyritic biotite
7LB22 United States North Carolina Gneiss Shelby gray, fine grain, biotite
7LB23 United States North Carolina Quartz Charlotte white, dark-spotted, Leopard Rock, Porphyritic
7LB24 United States Maine Granite Pownal gray, fine grain, biotite
7LB25 United States Maine Granite Lincoln bray, coarse grain, hornblende
7Lb26 United States New York Sandstone Woodstock dark blue gray, medium grain, compact, Devonian
7LB27 United States New York Sandstone Phoenicia dark gray, fine grain, compact, Devonian
7LB28 United States Kentucky Sandstone Taylor Co. gray, brown lines, fine grain, compact
7LB29 United States California Sandstone Livermore gray, fine grain, porous
7Lb3 Austria Marble Castione pale pinkish-yellow, brecciated, coarse grain calcite
7Lb30 United States Texas Sandstone Pecos Red, fine grain, compact
7LB31 United States Colorado Sandstone Fort Collins buff, gray-banded, fine grain, compact, calcareous
7LB32 United States Minnesota Granite Watab gray, coarse grain, hornblende-biotite
7LB33 United States Connecticut Gneiss Haddam dark gray, fine grain, hornblende-biotite
7Lb34 United States Connecticut Gneiss Sterling gray, coarse grain, biotite-muscovite
7LB35 United States Nevada Andesite Reno light gray, medium grain, compact, hornblende
7LB36 United States Nevada Andesite Virginia City light brown, white-spotted, Porphyritic, hornblende
7LB37 United States Massachusetts Gneiss Westford light gray, fine grain, muscovite
7LB38 United States Maryland Granite Woodstock gray, medium grain, biotite
7LB39 United States New Jersey Sandstone Pleasant Val. brown, fine grain, porous, Triassic
7Lb4 Austria Marble Manzana gray and white, coarsely fossiliferous calcite
7LB40 United States New Jersey Sandstone Newark brownish-purple, fine grain, porous, Triassic
7LB41 United States Montana Granite Lewis & Clark Co. gray, medium grain, Porphyritic, biotite
7Lb42 United States New Hampshire Granite W. Concord gray, fine grain, biotite-muscovite
7LB43 United States Michigan Sandstone L'Anse brownish-purple, gray-mottled, medium grain, porous, Potsdam
7LB44 United States Michigan Sandstone Stony Point dark-buff, fine grain, porous
7LB45 United States Michigan Sandstone L'Anse reddish-brown, fine grain, porous, Potsdam
7Lb5 Austria Marble Castione gray and white, coarsely fossiliferous calcite
7LB6 Austria Marble Salzburg red and white, fine grain calcite
7LB7 Austria Marble Castione pink, yellow and white, fine grain, brecciated
7LB8 Austria Marble Castione gray and brown, medium grain calcite
7LB9 Hungary Limestone Margarethen Leitha Mts. yellow, coarse grain, porous, fossiliferous
7LQ United States Tennessee Marble Knoxville gray, medium grain, calcite, Appalachian Silurianver Gray
7R21 United States Ohio Sandstone Glenmont buff, medium grain, Briar Hill
7RA1 Portugal Limestone Covoes, Coimbra buff, thin veins, fine grain, compact
7ra10 United States Arkansas Marble Nr. Batesville nearly black, fine grain, calcite
7RA11 United States Connecticut Limestone Shelterville dark gray, fine grain, compact
7RA12 United States Georgia Marble Tate pink, coarsely-crystalline, Lower Silurian, calcite
7RA13 United States Pennsylvania Limestone Harrisburg dark blue gray, white-veined, fine grain, compact, Lower Silurian
7RA14 United States Pennsylvania Limestone Connellsville light blue, medium grain, compact, Lower carboniferous
7RA15 United States Pennsylvania Limestone Lebanon nearly black, fine-banded, fine grain, compact, Lower Silurian
7RA16 United States Pennsylvania Limestone Wernersville dark blue gray, fine grain, compact, crystalline, Lower Silurian
7RA17 United States Pennsylvania Argillite (Slate) Slatedale blue-black, fine grain, roofing and tile slate
7RA18 United States Pennsylvania Sandstone Leboeuf light brown, medium grain, compact, Devonian
7RA19 United States Ohio Sandstone Carrollton light yellowish, coarse grain, porous, Sub-carboniferous
7RA2 Australia Marble South Australia brownish-white with brown veins, medium grain
7RA20 United States Ohio Sandstone Elyria gray, fine grain, porous, Lower carboniferous
7RA22 United States North Carolina Quartzite Hot Springs purple, fine grain, compact
7RA23 United States North Carolina Granite Gastonia gray, fine grain, muscovite-biotite
7RA24 United States Maine Granite Crotch Isl. mauve and white, coarse grain, Porphyritic, biotite
7RA25 United States Maine Granite Canaan dark gray, coarse grain, biotite
7RA26 United States New York Sandstone Camden gray, fine grain, compact, Upper Silurian
7RA27 United States New York Sandstone Albion purplish-brown, fine grain, compact, Upper Silurian
7RA28 United States Kentucky Sandstone Cloveport light brown, fine grain, porous, Lower carboniferous
7RA29 United States California Sandstone Angel Island gray, fine grain, porous
7RA3 Australia Marble New South Wales gray-variegated, fine grain calcite
7RA30 United States Texas Sandstone Burnet brown, coarse grain, compact, Lower Silurian, calcareous
7RA31 United States Colorado Sandstone Coal Creek light gray, fine grain, porous
7RA32 United States Minnesota Sandstone Dresback gray, fine grain, friable, Lower Silurian
7RA33 United States Connecticut Sandstone Portland purplish-brown, fine grain, compact, Triassic
7RA34 Scotland Sandstone Elgin, Moray
7RA35 United States Missouri Granite Graniteville Red, medium grain, biotite
7RA36 United States Missouri Granite Knob Lick gray, medium grain, hornblende
7RA37 United States Missouri Granite Syenite pinkish, medium grain, biotite
7RA38 United States Maryland Serpentine Dublin Borough light green, variegated
7RA39 United States New Jersey Sandstone Belleville brownish-purple, medium grain, porous, Triassic
7RA4 Hungary Marble Mannersdorf pale-buff and white, fossiliferous calcite
7RA40 United States Montana Diorite Helena gray, medium grain
7RA41 United States New Hampshire Granite Sunapee gray, fine grain, biotite-muscovite
7RA42 United States Michigan Sandstone Marquette reddish, fine grain, porous, Potsdam
7RA43 United States Wisconsin Granite Lohrville pinkish-gray, fine grain, biotite
7RA44 United States New Mexico Sandstone Las Vegas light gray, fine grain, porous
7RA45 United States New Mexico Serpentine Grant County Gila River green and white-banded, fine grain, Riccolite
7RA5 Hungary Limestone Margarethen Leitha Mts. buff, medium grain, porous, fossiliferous
7RA6 Hungary Limestone Leitha Mts. light buff, coarse grain, cellular, fossiliferous
7RA7 Hungary Limestone Mannersdorf pale-buff and white, coarse grain, porous, fossiliferous
7ra8 United States Alabama Limestone Dickson light gray, medium grain, compact, fossiliferous
7RA9 United States Alabama Limestone Tuscumbia light gray, medium grain, compact, fossiliferous-bearing
7RB1 Austria Marble St. Felice red and yellow-mottled, fine grain calcite
7RB10 Austria Marble Castione pink, yellow and gray mottled calcite
7RB11 Austria Marble Salzburg reddish, yellow-veined, fine grain calcite
7RB12 Austria Marble Adnet red and brown, fine grain, fossiliferous calcite
7RB13 Austria Marble Castione yellow, purple-motled, fine grain
7RB14 Austria Marble Adnet gray and brown, medium grain, fossiliferous calcite
7RB15 Austria Marble Castione Red, fine grain
7RB16 United States Pennsylvania Soapstone Montgomery Co. gray, dark-mottled, coarse grain, compact
Was this page helpful?