One of humankind's oldest and greatest technologies is making artificial stone. Adobe, brick, plaster, concrete—all were invented thousands of years ago to replicate the strength and utility of stone in places where rocks were scarce. They also offer their own distinctive textures and effects.
Are these really rocks? I think so; they have every important attribute of rocks, except that they aren't natural. They're better than natural. See What Is a Rock? for more discussion.
 Adobe Arch |  Adobe Bricks |  Lime Kiln |  Inside a Lime Kiln |
 Mortar in a Stone Wall |  Plaster Frieze |  Plaster and Brick |  Brick and Mortar |
 Brick Tile |  Concrete Sidewalk |  Sidewalk Cross Section |  Aggregate in Concrete |
- Graphic Index
- Text Index
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