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Although not as common as wood as a construction material, stone is still commonly found throughout Oregon especially in commercial and public buildings, monuments, and other structures, such as fences and small bridges. In general, the type of stone used in the construction of buildings often depended on the geographic region of Oregon.

Granite (EA)

A dense, coarse-grained, igneous rock that can be found in a wide-range of colors from gray to black, blue, brown, and white. Commonly used in public buildings in Oregon as facades and flooring, and in monuments.

Granite Monument, Portland, Multnomah Co., OR Granite Detail, Portland, Multnomah Co., OR Granite, SMSU PSU Campus, Portland, Multnomah Co., OR

Sandstone (EB)

Sedimentary rock with fine, "sand"-sized grains. Common colors include tan, gray, and white, but can be any color.

Sandstone facade, Portland, Multnomah Co., OR Sandstone detail, Portland, Multnomah Co., OR

Limestone (EC)

Typically light in color, limestone is a sedimentary rock primarily composed of the mineral calcite and other sediment that can alter the color of the stone. Commonly used in the production of cement.

Brick - Oregon Online Architectural Guide

Marble (ED)

A relatively soft, metamorphic rock that is typically white or light in color, marble is commonly used in Oregon as building material in public buildings and monuments.

Marble facade, Portland, Multnomah Co., OR Marble and Granite, Oregon State Archives Building, Salem, Marion Co., OR Marble detail, Oregon State Archives Building, Marion Co., OR

Marble ceiling, Parkway Building, Portland, Multnomah Co., OR

Slate (EE)

A fine-grained, metamorphic rock, slate is usually flat and dark in color.

Brick - Oregon Online Architectural Guide

Volcanic Stone (EF)

Basalt: usually a gray to black volcanic rock with a fine-grained texture.

Tuff: relatively soft and malleable produced from compressed ashes of a volcanic eruption. Typically found in construction of buildings in eastern Oregon.

Tuff Stone, Roba Ranch, Paulina vcty, Crook Co., OR Basalt facade, City Hall, St. Helens, Columbia Co., OR Tuff Stone, Burnaugh Building, 1916, Enterprise, Wallowa Co., OR

Basalt Wall, PSU Campus, Portland, Multnomah Co., OR

Cobblestone (EG)

Usually small stones used in paving streets and walkways that can be bound with mortar.

Cobblestone, Portland, Multnomah Co., OR

Field Stone (EH)

Consists of any kind of stone that can be found on topsoil that is used architecturally in its uncut, natural shape. Usually is laid in no or irregular courses.

Field Stone Chimney, Clackamas Co., OR Field Stone Foundation, A.T. Smith House, Forest Grove, Washington Co., OR Beach Stone, Bloch House, Agate Beach, Lincoln Co., OR

Flagstone (EJ)

Usually a flat type of sandstone that is used in chimney construction, as paving stone for pathways, and other decorative features. Colors can range from red and blue to dark brown.

Flagstone Chimney, Camp Arboretum, Corvallis vcty, Benton Co., OR

Stone: Other/Undefined (EZ)

Other stone that does not fit under the above categories.


Brick - Oregon Online Architectural Guide

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